COMMON BUT DIFFERENTIATED
RESPONSIBILITY: THE KYOTO
PROTOCOL AND UNITED
STATES POLICY
P
AUL
G. H
ARRIS
*
I
NTRODUCTION
The Framework Convention on Climate Change (Climate
Convention),
1
signed at the 1992 United Nations “Earth Sum-
mit” in Rio de Janeiro, is the first international legal instrument
to address climate change and is arguably the most comprehen-
sive international attempt to address adverse changes to the
global environment. The overriding goal of the Convention is
the “stabilization of greenhouse gas concentrations in the atmos-
phere at a level that would prevent dangerous anthropogenic in-
terference with the climate system.”
2
Industrialized countries
voluntarily agreed to reduce their emissions of greenhouse gases
(GHGs) to 1990 levels by 2000.
3
Few of those countries, how-
ever, will meet this target. The United States, which contains
only about four percent of the world’s population and produces
about one-quarter of the world’s greenhouse gases, is expected to
exceed the target by about thirteen percent.
4
The Climate Convention is a framework agreement. It lays
out several commitments and principles, but the most important
specific ways in which those provisions will be actualized—i.e.,
which countries will lower GHG emissions and by how much—
* Senior Lecturer, Department of Politics and Modern History, London
Guildhall University; Ph.D., Politics, Brandeis University. This Article is based
on research undertaken at the Oxford Centre for the Environment, Ethics and
Society at Mansfield College, Oxford University. Research support was pro-
vided by Sun Life Assurance. The author wishes to thank the editors of the
N.Y.U. Environmental Law Journal for their helpful comments.
1
United Nations Conference on Environment and Development: Frame-
work Convention on Climate Change, May 9, 1992, 31 I.L.M. 849 [hereinafter
FCCC].
2
Id. art. 2, 31 I.L.M. at 854.
3
See id. art. 4(2)(b), 31 I.L.M. at 857.
4
See E
NERGY
I
NFO
. A
DMIN
., A
NNUAL
E
NERGY
R
EVIEW
1996 (1997); E
N-
ERGY
I
NFO
. A
DMIN
., E
MISSIONS OF
G
REENHOUSE
G
ASES IN THE
U
NITED
S
TATES
1996 (1997).
27
28 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
were left to subsequent international negotiations and protocols.
5
In an effort to achieve more concrete action on GHG emissions,
parties to the Convention agreed to negotiate, in time for the
third Conference of the Parties in Kyoto at the end of 1997, a
protocol laying out binding targets and timetables for reductions
of GHGs by developed countries.
6
Among the key principles in the Convention left to be oper-
ationalized was that of “common but differentiated responsibil-
ity” (CBDR), whereby industrialized developed countries would
take the lead in addressing the climate problem, specifically ex-
cluding developing countries from binding GHG emissions re-
ductions.
7
This principle is grounded in shared notions of
fairness: the developed countries are disproportionately respon-
sible for historical GHG emissions and have the greatest capacity
to act.
8
Thus, the Convention makes few demands on the much
less responsible and usually much less capable developing coun-
tries. The exclusion of developing countries became one of the
most contentious issues before and during the Kyoto conference
(and remains so), especially because the United States insisted
that developing countries make “meaningful” contributions to
future GHG reduction efforts.
9
These U.S. demands appear to
contradict the CBDR principle.
I
C
OMMON BUT
D
IFFERENTIATED
R
ESPONSIBILITY AND
C
LIMATE
C
HANGE
As a nascent principle of international environmental law,
“common but differentiated responsibility” evolved from the no-
tion of the “common heritage of mankind.” The latter concept
gained stature in the United Nations Convention on the Law of
the Sea,
10
as well as the international designation of certain areas
5
See FCCC, supra note 1, arts. 4, 17, 31 I.L.M. at 855-59, 869.
6
See Review of the Implementation of the Convention and of Decisions of
the First Session of the Conference of the Parties, U.N. Framework Convention
on Climate Change Conference of the Parties, 2d Sess., Agenda Item 5, at 3,
U.N. Doc. FCCC/CP/1996/L.17 (1996).
7
See FCCC, supra note 1, pmbl. & arts. 3-4, 31 I.L.M. at 851-56.
8
See id. pmbl., 31 I.L.M. at 851 (noting, inter alia, that “the largest share of
historical and current global emissions of greenhouse gases has originated in
developed countries”).
9
See discussion infra Parts I.B-C, II.A-B.
10
United Nations Convention on the Law of the Sea, opened for signature
Dec. 10, 1982, 21 I.L.M. 1261. This concept dates to the 1950s and was also
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 29
(e.g., Antarctica and the deep seabed) and resources (e.g.,
whales) as “common interests” of humankind.
11
Bearing in mind
that humans depend on a healthy climate for their survival, the
General Assembly went further by recognizing the earth’s cli-
mate as a “common concern” of humankind.
12
This implicates
not only the need for international cooperation to protect human
interests, but also a “certain higher status inasmuch as it empha-
sizes the potential dangers underlying the problem of global
warming and ozone depletion [and suggests] that international
governance regarding those ‘concerns’ is not only necessary or
desired but rather essential for the survival of humankind.”
13
Insofar as the climate is of such crucial “common concern”
to humankind, it follows that there is a responsibility on the part
of countries to protect it. This begs the question of who is re-
sponsible for climate pollution. The answer is a function of each
country’s historical responsibility for the problem, its level of
economic development, and its capability to act. This was sug-
gested by Principle 23 of the 1972 Stockholm Declaration, which
states that it is essential to consider “the extent of the applicabil-
ity of standards which are valid for the most advanced countries
but which may be inappropriate and of unwarranted social cost
for developing countries.”
14
The CBDR principle is described succinctly in Principle 7 of
the Rio Declaration on Environment and Development:
15
integrated into the 1979 Moon Agreement. See Agreement Governing the Ac-
tivities of States on the Moon and Other Celestial Bodies, Dec. 5, 1979, 18
I.L.M. 1434. See generally Frank Biermann, “Common Concern of Human-
kind:” The Emergence of a New Concept of International Environmental Law,
34 A
RCHIV DES
V
OLKERRECHTS
426 (1996).
11
See Biermann, supra note 10, passim (providing a more detailed discus-
sion). Cf. Antarctic Treaty, opened for signature Dec. 1, 1959, pmbl., 12 U.S.T.
794, 795, 402 U.N.T.S. 71, 74 (entered into force June 23, 1961); International
Convention for the Regulation of Whaling, Dec. 2, 1946, pmbl., 161 U.N.T.S.
72; G.A. Res. 2574, Question of the Reservation Exclusively for Peaceful Pur-
p
oses of the Sea-Bed and the Ocean Floor, and the Subsoil Thereof, Underlying
the High Seas Beyond the Limits of the Present National Jurisdictions, and the
Use of Their Resources in the Interests of Mankind, U.N. GAOR, 24th Sess.,
Supp. No. 30, at 10, U.N. Doc. A/7630 (1969), reprinted in 9 I.L.M. 419, 422.
12
See Biermann, supra note 10, at 431.
13
Id.
14
Declaration of the United Nations Conference on the Human Environ-
ment, June 16, 1972, princ. 23, 11 I.L.M. 1416, 1420 (Stockholm Declaration).
15
United Nations Conference on Environment and Development: The Rio
Declaration on Environment and Development, June 13, 1992, 31 I.L.M. 874
[hereinafter Rio Declaration].
30 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
States shall cooperate in a spirit of global partnership to con-
serve, protect and restore the health and integrity of the
Earth’s ecosystem. In view of the different contributions to
global environmental degradation, States have common but
differentiated responsibilities. The developed countries ac-
knowledge the responsibility that they bear in the interna-
tional pursuit of sustainable development in view of the
pressures their societies place on the global environment and
of the technologies and financial resources they command.
16
According to this principle, while all countries are responsible for
global environmental problems (e.g., global warming and strato-
spheric ozone depletion), some countries are more responsible
than others. This principle was implicit in the 1987 Montreal
Protocol on Substances that Deplete the Ozone Layer,
17
and it
has been recognized in other important international undertak-
ings.
18
More to the point, while all countries must join in efforts
to reduce emissions of greenhouse gases that contribute to cli-
mate change, the developed countries are required by the Cli-
mate Convention to take the lead.
A. The Framework Convention on Climate Change
Climate change is caused, at least in part, by anthropogenic
sources of various greenhouse gases, especially carbon dioxide,
which comes from the burning of fossil fuels.
19
All countries
could suffer from climate change, although it is likely that poor
countries will suffer most, due to their vulnerable geographies
and economies.
20
In addition, it is the economically developed
16
Id. princ. 7, 31 I.L.M. at 877.
17
Montreal Protocol on Substances That Deplete the Ozone Layer, Sept.
16, 1987, 26 I.L.M. 1541 (entered into force Jan. 1, 1989).
18
The principle of common but differentiated responsibility has been ac-
knowledged by, inter alia, the U.N. General Assembly in G.A. Res. 228, U.N.
GAOR, 44th Sess., Supp. No. 49, at 152, U.N. Doc. A/44/49 (1989), and several
climate-related meetings, including the Second World Climate Conference,
meetings of the Preparatory Committee of the United Nations Conference on
Environment and Development, the Toronto Conference Statement, the Hague
Declaration, and the Noordwijk Declaration. See Philippe Sands, The “Green-
ing” of International Law: Emerging Principles and Rules, 1 I
ND
. J. G
LOBAL
L
EGAL
S
TUD
. 293, 295-96 (1994).
19
See C
LIMATE
C
HANGE
1995: T
HE
S
CIENCE OF
C
LIMATE
C
HANGE
(J.T.
Houghton et al. eds., 1996).
20
See C
LIMATE
C
HANGE
1995: I
MPACTS
, A
DAPTATIONS AND
M
ITIGATION
OF
C
LIMATE
C
HANGE
(Robert T. Watson, et al. eds., 1996); O
FFICE OF
G
LOBAL
I
NTEGRATED
E
NVTL
. H
EALTH
, W
ORLD
H
EALTH
O
RG
., C
LIMATE
C
HANGE AND
H
UMAN
H
EALTH
(1996); Intergovernmental Panel on Climate Change, Sum-
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 31
countries of the so-called global North that have generated the
most GHGs since the advent of the Industrial Revolution, and
they have thereby benefited from using the global atmosphere as
a sink for the harmful by-products of their economic develop-
ment.
21
During the negotiations for the Climate Convention, de-
veloping countries were unified in emphasizing the historical
responsibility of developed countries for climate change.
22
They
agreed to participate in the climate negotiations only on the con-
dition that they not be required to accept any substantial com-
mitments of their own.
23
The developed countries remain the largest sources of
greenhouse gases, but the developing countries are expected to
overtake them in coming decades.
24
The United States currently
produces more GHGs than any other country, but China is cur-
rently in second place and will rival the United States for output
within a generation.
25
Thus, it is essential that the large develop-
ing countries eventually join in limiting their greenhouse gases.
The first basic principle of the Climate Convention, Article
3(1), states:
The Parties should protect the climate system for the ben-
efit of present and future generations of humankind, on the
basis of equity and in accordance with their common but dif-
ferentiated responsibilities and respective capabilities. Ac-
cordingly, the developed country Parties should take the lead
in combating climate change and the adverse effects thereof.
26
mary for Policymakers—The Regional Impacts of Climate Change: An Assess-
ment of Vulnerability (visited Nov. 10, 1998) <http://www.usgcrp.gov/ipcc/html/
RISPM.html>.
21
See C
LIVE
P
ONTING
, A G
REEN
H
ISTORY OF THE
W
ORLD
387-92, 405-06
(1991).
22
See Delphine Borione & Jean Ripert, Exercising Common but Differenti-
ated Responsibility, in N
EGOTIATING
C
LIMATE
C
HANGE
77, 83-84 (Irving M.
Mintzer & J. Amber Leonard eds., 1994).
23
See id.
24
See I
NTERNATIONAL
E
NERGY
A
GENCY
, W
ORLD
E
NERGY
O
UTLOOK
2-3
(1995).
25
See W
ORLD
R
ESOURCES
I
NST
.
ET AL
., W
ORLD
R
ESOURCES
315-25 (1996);
s
ee also I
NTERNATIONAL
E
NERGY
A
GENCY
, supra note 24, at 2-3.
26
FCCC, supra note 1, art. 3(1), 31 I.L.M. at 854. Specific commitments to
limit GHG emissions apply to Organization for Economic Cooperation and De-
velopment (OECD) countries (except Mexico, which joined in 1994) and twelve
Eastern European and former Soviet “economies in transition.” See FCCC,
s
upra note 1, Annex I, 31 I.L.M. at 872. The poorest countries of the world are
excluded from commitments, but so too are South Korea, Singapore, Saudi
Arabia, and similarly “less developed”—but hardly poor—countries. See Bonn
32 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
The Climate Convention recognizes that all countries are re-
sponsible for climate change and should endeavor to limit the
pollution that causes it.
27
However, following the CBDR princi-
ple, the treaty does not require developing countries to reduce
their greenhouse gases. It instead requires the developed coun-
tries to take the “lead in modifying longer-term trends in anthro-
pogenic emissions [of greenhouse gases] consistent with the
objective of the Convention.”
28
Thus, there is a double standard
built into the Climate Convention—a double standard that is
meant to achieve the Convention’s objective of reducing GHGs
to manageable levels in ways that are both effective and fair.
29
It
would be unfair to expect developing countries to limit their eco-
nomic development when wealthy countries are most responsible
for present concentrations of atmospheric greenhouse gases and
the expected consequences of this pollution for the global cli-
mate in the next century.
30
B. The Berlin Mandate
The CBDR principle was reaffirmed in 1995 at the first con-
ference of the FCCC parties in Berlin. Countries agreed to the
“Berlin Mandate,” whereby developed countries pledged to act
first to reduce their GHG emissions before requiring developing
to Kyoto: The Administration’s Position on the Climate Change Treaty, Hearing
Before the House Comm. on Int’l Relations, 105th Cong. 10 (1997) [hereinafter
Bonn to Kyoto] (statement of Timothy Wirth, Under Secretary of State for
Global Affairs). The United States wanted the CBDR principle to be extended
to countries within the non-Annex I (developing countries) group. Under such
a formula, the poorest countries would remain exempt from commitments, but
the relatively affluent developing countries and the largest GHG emitters
would agree to emissions limitations. See Global Climate Negotiations: Obliga-
tions of Developed and Developing Countries, Hearings Before the House
Comm. on Int’l Relations, 105th Cong. 63 (1997) [hereinafter Global Climate
Negotiations] (statement of Timothy Wirth, Under Secretary of State for Global
Affairs).
27
See FCCC, supra note 1, art. 3, 31 I.L.M. at 854-55.
28
Id. art. 4(2)(a), 31 I.L.M. at 856.
29
See Paul G. Harris, Considerations of Equity and International Environ-
mental Institutions, 5 E
NVTL
. P
OL
. 274, 291-94 (1996).
30
On the notions of fairness and equity in the context of climate change and
other international environmental issues, see, e.g., C
LIMATE
C
HANGE
1995:
E
CONOMIC AND
S
OCIAL
D
IMENSIONS
ch. 3 (James P. Bruce et al. eds., 1996);
E
QUITY AND
S
OCIAL
C
ONSIDERATIONS
R
ELATED TO
C
LIMATE
C
HANGE
(Rich-
ard Samson Odingo et al. eds., 1994); Paul G. Harris, Affluence, Poverty, and
Ecology: Obligation, International Relations, and Sustainable Development, 2
E
THICS
& E
NV
T
121, 129-30 (1997); Paul G. Harris, Environment, History and
International Justice, 40 J. I
NT
L
S
TUD
., July 1997, at 1.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 33
countries to do so.
31
The Berlin Mandate declares that the pro-
cess of implementing the Climate Convention shall be guided,
inter alia, by the CBDR principle.
32
It reminds parties that they
are required to consider the special needs of the developing
countries and that “the largest share of historical and current
global emissions of greenhouse gases has originated in developed
countries, that the per capita emissions in developing countries
are still relatively low and that the share of global emissions
originating in developing countries will grow to meet their social
and development needs.”
33
It goes on to state: “[T]he global na-
ture of climate change calls for the widest possible cooperation
by all countries and their participation in an effective and appro-
priate international response, in accordance with their common
but differentiated responsibilities and respective capabilities and
their social and economic conditions.”
34
Clearly, negotiations for the Kyoto Protocol between 1995
and 1997 were premised on the CBDR principle. The United
States, along with other developed countries party to the Con-
vention, accepted this standard because they knew developing
countries would not—and in many cases could not—limit their
emissions otherwise.
35
To many observers, however, the U.S.
policy toward common but differentiated responsibility and cli-
mate change appeared to shift in the months before the Kyoto
gathering. Indeed, the common interpretation was that the
United States had abrogated its responsibility with regard to the
CBDR principle.
36
C. The Kyoto Protocol
Throughout the international negotiations on a protocol to
the Climate Convention, developing countries consistently de-
clared that they would not agree to any limitations (least of all
31
See Report of the Conference of the Parties on its First Session, Held at
Berlin from March to 7 April 1995, U.N. Framework Convention on Climate
Change Conference of the Parties, 1st Sess., at 1, U.N. Doc. FCCC/CP/1995/7/
Add.1 (1995).
32
See id. art. I(1)(a), at 4 (quoting Article 3(1) of the Climate Convention).
33
Id. art. I(1)(d), at 5.
34
Id. art. I(1)(e), at 5.
35
Cf. Group of Seven Industrialized Countries (G-7) and Russia, Final
Communiqu´e of the Denver Summit of the Eight, ¶¶ 14-17 (June 22, 1997)
<http://sung7.univ-lyon2.fr/toronto/denver/g8final.htm>.
36
This was evident in press reports. See, e.g., William K. Stevens, Green-
house Gas Issue: Haggling over Fairness, N.Y. T
IMES
, Nov. 30, 1997, § 1, at 6.
34 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
reductions) in their GHG emissions until the developed countries
substantially reduced theirs.
37
In short, those responsible for the
problem—the developed countries, particularly the United
States—would have to agree to binding limitations on their own
greenhouse gas emissions before they could rightfully expect the
poor countries to do likewise. The stiff resolve of the developing
countries was further demonstrated by a comment from one of
their delegates at the October 1997 climate change talks in Bonn,
made in response to President Clinton’s announcement of the
U.S. position that same month (which called on developing coun-
tries to take on new commitments for reducing their greenhouse
gases): “[N]o protocol is better than a protocol with new devel-
oping country commitments.”
38
The developing countries acted on these sentiments in Ky-
oto, vetoing any language in the Protocol that would call on them
to make even voluntary commitments to limit their emissions of
greenhouse gases.
39
Accordingly, the Kyoto Protocol of Decem-
ber 10, 1997
40
requires developed countries to reduce their aggre-
gate emissions of greenhouse gases by five percent below 1990
levels by 2012.
41
The United States agreed to reduce its emis-
sions by seven percent, the Europeans by eight, and the Japanese
by six.
42
A handful of developed countries, such as Australia,
were allowed to increase their emissions.
43
Conforming to the Climate Convention’s provisions for the
CBDR principle and specifically reaffirming the Berlin Mandate,
the Kyoto Protocol does not require the developing countries to
take on new commitments to limit their GHG emissions. Indeed,
the Protocol is devoid of references to commitments of develop-
ing countries.
44
Rather, all of its provisions apply to the devel-
37
See After Kyoto, New Round of Battle Coming Up, J. G
ROUP
77 (Sept.-
Nov. 1997) <http://www.g77.org/Journal/sepnov97/06.htm>.
38
Paola Bettelli et al., Highlights from the Meeting of the FCCC Subsidiary
Bodies, 12 E
ARTH
N
EGOTIATIONS
B
ULL
. 1, ¶ 16 (Oct. 24, 1997) <http://www.
iisd.ca/linkages/download/asc/enb1260e.txt> (on file with author).
39
See Paola Bettelli et al., Report of the Third Conference of the Parties to
the United Nations Framework Convention on Climate Change: 1-11 December
1997, 12 E
ARTH
N
EGOTIATIONS
B
ULL
. 1, ¶ 74 (Dec. 13, 1997) <http://www.
iisd.ca/linkages/download/asc/enb1276e.txt> (on file with author).
40
Kyoto Protocol to the United Nations Framework Convention on Climate
Change, Dec. 10, 1997, 37 I.L.M. 22 [hereinafter Kyoto Protocol].
41
See id. art. 3(1), 37 I.L.M. at 33.
42
See id. Annex B, 37 I.L.M. at 43.
43
See id.
44
See id.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 35
oped “Annex I” countries. In Article 10, the Protocol explicitly
reaffirms the CBDR principle, stating that all parties must take
into account “their common but differentiated responsibilities
and their specific national and regional development priorities,
objectives, and circumstances, without introducing any new com-
mitments for Parties not included in Annex I [i.e., the developing
countries].”
45
II
C
OMMON BUT
D
IFFERENTIATED
R
ESPONSIBILITY FOR
C
LIMATE
C
HANGE AND THE
U.S. G
OVERNMENT
The U.S. government
46
has consistently supported common
but differentiated responsibility in the context of climate change,
despite contrary interpretations in most press reports. It is true
that the U.S. position on CBDR differs somewhat from that of
other countries, especially if one is concerned with rhetoric from
Congress and strict interpretations of proposed treaty wording.
47
This was evident during the months before Kyoto when the Clin-
ton Administration called for “new” and “meaningful” commit-
45
Id. art. 10, 37 I.L.M. at 36-37. It bears noting that the CBDR principle is
not tied to the distinction between developed and developing countries: the
principle can be invoked even among developed countries. For example, while
both the United States and Canada must act before the developing countries,
the United States must reduce its emissions more than Canada. See id. Annex
B, 37 I.L.M. at 43. On the other hand, the United States, far and away the
largest source of greenhouse gases and the wealthiest economy in the world, is
required to reduce its emissions less than the European Union. See id. This is
so despite the fact that E.U. citizens produce fewer greenhouse gases in the
aggregate and especially less per capita than do the Americans. See W
ORLD
R
ESOURCES
I
NST
.
ET AL
., supra note 25, at 319. Most developed countries are
required to reduce their GHG emissions, but Australia (for example) is permit-
ted an eight percent increase. See Kyoto Protocol, supra note 40, Annex B, 37
I.L.M. at 43. This differentiation is ostensibly based on national circumstances,
but in reality it was largely a function of political bargaining in the Kyoto
process.
46
References in this Article to “the U.S. government” mean the Clinton
Administration (and the applicable Executive agencies) and Congress, notably
the Senate, which must ratify international treaties signed by the President. See
U.S. C
ONST
. art. II, § 2, cl. 2.
47
The greatest divergences from the U.S. position have been advanced by
many of the developing countries, notably China, which do not want any treaty
references to new developing country commitments. See Bonn to Kyoto, supra
note 26, at 7 (statement of Timothy Wirth, Under Secretary of State for Global
Affairs).
36 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
ments from developing countries in the Protocol.
48
This position
was highly contentious, in large measure because the developing
countries feared that any language calling for new commitments
would set dangerous precedents.
49
Additionally, these develop-
ing countries may have felt that the U.S. position would be im-
possible to sell to their domestic constituencies, regardless of the
wording and even if this position permitted increased GHG emis-
sions on their part.
50
However, it would be wrong to say that the
United States expected developing countries to take on “com-
mon” responsibilities instead of “common but differentiated” re-
sponsibilities. Recall that the U.S. government joined the 1995
Berlin Mandate, thereby reaffirming the CBDR provisions of the
Climate Convention. Even Congress, particularly the Senate, de-
clared its support for CBDR, as indicated by extensive debate on
the Senate floor.
51
In substance, the U.S. government accepted
and actively promoted the CBDR principle in the climate change
negotiations.
A. The U.S. Senate’s Byrd-Hagel Resolution
In July 1997, by a vote of 95-0, the U.S. Senate adopted Sen-
ate Resolution 98 (SR-98), the so-called Byrd-Hagel Resolu-
tion.
52
SR-98 stated, inter alia, that the United States should not
be a signatory to any protocol to, or other agreement regarding,
the Climate Convention that would
(A) mandate new commitments to limit or reduce greenhouse
gas emissions for the Annex I [developed country] Parties, un-
48
See White House, Comprehensive Framework for Effective, Sensible Ac-
tion (Oct. 22, 1997) <http://www.whitehouse.gov/Initiatives/Climate/frame-
work-plain.html>; President William J. Clinton, Remarks by the President on
Global Climate Change at the National Geographic Society (Oct. 22, 1997)
[hereinafter Remarks] reprinted in Bonn to Kyoto, supra note 26, at 19 (tran-
script available at <http://www.whitehouse.gov/Initiatives/Climate/1997 1022-
6127.html>).
49
See The Third Conference of the Parties to the UN Framework Convention
on Climate Change: 1 December 1997, 12 E
ARTH
N
EGOTIATIONS
B
ULL
. 1, ¶ 18
(Dec. 2, 1997) <http://www.iisd.ca/linkages/download/asc/enbl1268e.txt> (on
file with author).
50
See generally Elizabeth P. Barratt-Brown, Building a Monitoring and
Compliance Regime Under the Montreal Protocol, 16 Y
ALE
J. I
NT
L
L. 519, 545-
46 (1991).
51
See infra Part II.B.
52
S. Res. 98, 105th Cong., 143 C
ONG
. R
EC
. S8138-39 (daily ed. July 25,
1997). For a transcript of the Senate floor debate on the Byrd-Hagel Resolu-
tion, see id. at S8113-38.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 37
less the protocol or other agreement also mandates new spe-
cific scheduled commitments to limit or reduce greenhouse gas
emissions for Developing Country Parties within the same
compliance period, or
(B) would result in serious harm to the economy of the
United States . . . .
53
The Byrd-Hagel Resolution reflected concerns about the ef-
fects of any climate treaty on the U.S. economy and distrust
among both Republican and Democratic senators of an agree-
ment that would exclude the developing countries. On a first
reading, the Resolution sounds ominous to those concerned
about CBDR and international fairness, and observers could be
forgiven for interpreting it as a “treaty killer.” But such an inter-
pretation would miss the Resolution’s message. Rather than fo-
cusing on the rhetoric of the most outspoken anti-Climate
Convention senators, it is instructive to look at the meaning of
the Resolution made explicit by senators in floor debate, as well
as the interpretation of the Resolution adopted by the Clinton
Administration in its public statements. Such an examination
shows that the Byrd-Hagel Resolution was based fundamentally
on conceptions of CBDR and notions of fair and equitable inter-
national burden-sharing.
B. Senate Debate and Common but Differentiated
Responsibility
The Senate’s concerns about developing country participa-
tion in the FCCC process were at least twofold. First, rightly or
wrongly, there was a concern that developing countries would
have an unfair economic advantage because they would not be
facing the same restrictions on economic output as the United
States.
54
Gross National Product is, for better or worse, still
largely proportional to energy use and thus to GHG emissions
(especially carbon dioxide).
55
There was also the concern that
U.S. manufacturing, and hence U.S. jobs, would move abroad to
take advantage of relaxed environmental regulations there.
56
53
Id. at S8138.
54
See id. at S8115-16 (statement of Sen. Hagel); Global Climate Negotia-
tions, supra note 26, at 4-5 (statement of Rep. Rohrabacher).
55
See Peter Passel, Trading on the Pollution Exchange, N.Y. T
IMES
, Oct. 24,
1997, at D1.
56
See 143 C
ONG
. R
EC
. at S8115 (daily ed. July 25, 1997) (statement of Sen.
Hagel).
38 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
Second, the Senate believed that an effective climate treaty abso-
lutely required developing country participation.
57
During floor
debate on the Resolution, senator after senator cited the future
emissions of China as justification for their position.
58
Some sen-
ators pointed out that by 2015 China will surpass the United
States to become the world’s leading producer of GHGs and
noted that other large developing countries were rapidly increas-
ing their emissions as well.
59
Perhaps the greatest confusion about the Byrd-Hagel Reso-
lution concerns its requirement that any climate agreement
“mandate[ ] new specific scheduled commitments to limit or re-
duce greenhouse gas emissions for Developing Country Parties
within the same compliance period” as the United States and
other developed country parties.
60
During floor debate, several
senators went to great lengths to establish the precise interpreta-
tion of this provision. Most senators accepted that the U.S. was
more responsible for the problem, that the developing coun-
tries—while they must undertake “specific scheduled commit-
ments” in the “same compliance period”—should not be
required to undertake the same commitments as the developed
countries, and that the poorest and least capable countries should
have the least stringent requirements (or none at all) placed
upon them.
61
Indeed, one could readily interpret the Resolution
as accepting that many developing countries would increase their
GHG emissions but that those increases ought to be codified in
the agreement. Indeed, this was the U.S. negotiating position at
the Kyoto conference.
62
The comments of several senators readily demonstrate that
the U.S. Senate accepted the fundamental provisions of the Cli-
57
See id. at S8117 (statement of Sen. Byrd); id. at S8122 (statement of Sen.
Roberts). This is based on the widespread assumption, backed by scientists,
that there is a climate change problem. It is important to note, however, that
some U.S. legislators in both the Senate and House of Representatives still
doubt that climate change is a problem at all (or at least that is what they have
said publicly). See Global Climate Negotiations, supra note 26, at 4-5 (state-
ment of Rep. Rohrabacher).
58
See 143 C
ONG
. R
EC
. at S8122 (daily ed. July 25, 1997) (statement of Sen.
Roberts); id. at S8124 (statement of Sen. Lott).
59
See id. at S8126 (statement of Sen. Kyl); id. at S8127 (statement of Sen.
Thomas).
60
Id. at S8138.
61
See id. at S8113-39.
62
See Bettelli et al., supra note 39, ¶ 210.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 39
mate Convention and the CBDR principle. Many legislators rec-
ognized that the United States was the largest part of the climate
change problem and that the U.S. should act to reduce its GHG
emissions while assisting developing countries with their actions.
For example, in a statement on the Senate floor, Senator
Patty Murray said:
Regarding the developed-developing nation debate, I be-
lieve it is also clear that we developed nations have historically
emitted more greenhouse gases per capita than have develop-
ing countries. In addition, we are economically more able to
absorb whatever increased costs occur based on the need to
reduce emissions. Therefore, we should assist our neighbors
through technology transfer, economic assistance, and joint
ventures in meeting whatever emissions goals are
established.
63
Senator Robert Byrd, primary co-sponsor of SR-98, inter-
preted the developing country provisions of the Resolution as es-
sentially ad hoc obligations:
Now, does this mean that the Senate is insisting on com-
mitments to identical levels of emissions among all the par-
ties? Certainly not. The emissions limitations goals, to be fair,
should be based on a country’s level of development. The pur-
pose is not to choke off Mexico’s development or China’s
development.
64
Similarly, Senator John Kerry offered a subjective interpre-
tation of the seemingly objective phrase, “same compliance
period”:
[I]t means essentially that we want countries to begin to re-
duce while we are reducing, we want them to engage in a rea-
sonable schedule while we are engaged in a reasonable
schedule, but that if a developing nation needs more time to
get a plan in place or needs to have more time to raise the
funds and be able to purchase the technology and do the
things necessary, that as long as there is a good-faith track on
which they are proceeding, that if it took them a number of
years . . . to reach a particular goal, that certainly means within
the same compliance period . . . . [I]t is reasonable to permit
some flexibility in the targets and timing of compliance while
at the same time requiring all countries to agree to make a
63
143 C
ONG
. R
EC
. at S8124 (daily ed. July 25, 1997) (statement of Sen.
Murray).
64
Id. at S8117 (statement of Sen. Byrd).
40 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
legally binding commitment by a date certain. That is reason-
able. But I think most of my colleagues would agree that if
some country simply doesn’t have the capacity, the plan, the
money, or the technology, it may be they have to take a little
more time and we should want to be reasonable in helping
them to do that because the goal here is to get everybody to
participate, not to create a divisiveness that winds up with do-
ing nothing.
65
Senator Max Baucus reiterated the need for the developing
countries to have the same compliance period, adding: “But
since developing and developed nations are starting from differ-
ent places, it makes sense to require different targets. Here
again, the language crafted by Senator Byrd helps. It does not
specify that developed and developing countries meet the same
targets and timetables.”
66
Senator Robert Kerrey echoed these remarks, explaining
that the Senate Resolution would allow developing countries
“appropriate” flexibility in their commitments to abate GHG
emissions.
67
He added that it was the developed countries who
were “in a better position to implement emissions-curbing activi-
ties and technologies at low cost and impact, and to also transfer
these abilities and technologies to developing countries and to
aid in their economic advancement in a way that tempers emis-
sions growth.”
68
Senator Joseph Lieberman reinforced these interpretations
in the following statement:
New commitments by developing countries regarding
their performance under the [FCCC], of course, need to be
consistent with their historic responsibility for the problem, as
well as their current capabilities. The ground rules for the ne-
gotiations—the Berlin [M]andate—recognize these common,
but differentiated responsibilities.
It is clear that the Berlin [M]andate can be carried out in
a way that is consistent with Senate Resolution 98. The reso-
lution says that developing countries can start with a commit-
ment that is lower relative to the industrialized countries at
first. . . .
65
Id. at S8120 (statement of Sen. Kerry).
66
Id. at S8125 (statement of Sen. Baucus).
67
Id. at S8128 (statement of Sen. Kerrey).
68
Id.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 41
Senate Resolution 98 says that it is entirely appropriate
for industrialized countries to start making quantified emis-
sions reductions first . . . .
69
To put to rest confusion about the interpretation of the de-
veloping country provisions of the Byrd-Hagel Resolution, Sena-
tor Jeff Bingaman entered a colloquy with Senator Byrd:
[Mr. Bingaman:] I was greatly encouraged by the remarks on
this issue made by the sponsor of this resolution . . . . [who said
that] countries at different levels of development should make
unique and binding commitments of a pace and kind consis-
tent with their industrialization . . . [and] consistent with a fair
sharing of any burden. . . .
. . . Would it be correct to interpret the use of the words
“new commitments” in both phrases as suggesting that the
United States should not be a signatory to any protocol unless
Annex I Parties and Developing Country Parties agree to
identical commitments?
Mr. Byrd: That would not be a correct interpretation of the
resolution. . . . In [the committee hearings for SR-98,] I made
the following statement and deliberately repeated it for em-
phasis: “Finally, while countries have different levels of devel-
opment, each must make unique and binding commitments of
a pace and kind consistent with their industrialization.” I be-
lieve that the developing world must agree in Kyoto to binding
targets and commitments that would begin at the same time as
the developed world in as aggressive and effective a schedule
as possible given the gravity of the problem and the need for a
fair sharing of the burden. That is what the resolution means.
The resolution should not be interpreted as a call for identical
commitments between Annex I Parties and Developing Coun-
try Parties.
70
To be sure, it would be much easier for international negoti-
ators and for the Clinton Administration if the Senate had never
passed the Byrd-Hagel Resolution. One might even assume that
some senators were not interested in international fairness; they
might be happy to see developing countries subjected to immedi-
ate mandated reductions in their greenhouse gases. Neverthe-
less, as the senators’ statements show, the Resolution was not
what it might appear to be. That is, SR-98 was not a renunciation
69
Id. at S8129 (statement of Sen. Lieberman).
70
Id. at S8131 (statements of Sen. Bingaman & Sen. Byrd).
42 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
of the CBDR principle but rather an alternative interpretation of
it, albeit a less robust one than the developing countries wanted.
C. Common but Differentiated Responsibility and
the Clinton Administration
Responding to the Byrd-Hagel Resolution, and bearing in
mind the increasing emissions of greenhouse gases from develop-
ing countries, President Clinton announced on October 22, 1997
his Administration’s negotiating position for the Kyoto confer-
ence.
71
He called on the industrialized countries to commit to a
binding and “realistic” target of returning emissions of GHGs to
1990 levels between 2008 and 2012, and of reducing emissions
below 1990 levels between 2012 and 2017.
72
President Clinton
declared that “both industrialized and developing countries must
participate in meeting the challenge of climate change.”
73
Clin-
ton added that “[d]eveloping countries have an opportunity to
chart a different energy future consistent with their growth po-
tential and their legitimate economic aspirations.”
74
He said that
“key” developing countries (those that are the wealthiest and the
largest emitters among the developing parties, including China,
India, and Mexico) must take “meaningful” action, but that the
“industrialized world must lead.”
75
Thus, meaningful participa-
tion of key developing countries did not mean equal
participation.
Affirming that the U.S. position was to support, not harm,
economies in the developing world, President Clinton said that
he would not propose changes to the Climate Convention that
would adversely affect the growth of developing countries, which
feared emissions reductions might penalize them, because their
industries are often less pollution-conscious.
76
The President
said that the United States wanted to help the developing nations
grow as much as they would without a treaty, but using a “differ-
ent energy future than the one we charted in the past when we
71
See Remarks, supra note 48, ¶¶ 15-30.
72
See President Clinton’s Climate Change Proposal (Oct. 22, 1997) <http://
www.whitehouse.gov/Initiatives/Climate/proposal-plain.html>.
73
Remarks, supra note 48, ¶ 19.
74
Id. ¶ 20.
75
Id. ¶ 19.
76
See Remarks by President Clinton and President Cardoso at Signing of
Declaration on Education (Oct. 14, 1997) <http://www.pub.whitehouse.gov/uri-
res/I2R?urn:pdi://oma.eop.gov.us/1997/10/20/1.text.1>.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 43
were at the same stage of development.”
77
In his October 22 an-
nouncement of the U.S. Kyoto negotiating position, Clinton
again acknowledged the special U.S. responsibility for the prob-
lem: “The United States has less than five percent of the world’s
people, enjoys 22 percent of the world’s wealth, but emits more
than 25 percent of the world’s greenhouse gases.”
78
In Senate testimony, then-Under Secretary of State for
Global Affairs Timothy Wirth described the U.S. position on
many of the most contentious questions of equity and fairness in
the context of climate change.
79
Despite facing hostile questions
from some senators, his description of U.S. policy accommodated
the CBDR principle, especially with regard to U.S. expectations
of the developing countries.
80
Wirth noted that the developing
countries would have to be part of the treaty, because their GHG
emissions were increasing rapidly.
81
At the same time, however,
he pointed out that the developing countries’ per capita emis-
sions would continue to remain “far below our own,”
82
and he
defended the actions that the developing countries had already
taken to reduce their GHG emissions despite, as he made clear,
their relative poverty.
83
Wirth said that the United States “must
determine what we ask of developing countries with realistic and
fair appreciation of how they see the world as well. The level and
timing of each country’s commitments must be commensurate
with its national abilities and level of development. Balance and
fairness must be maintained.”
84
His remarks, like those of Vice
77
Id.
78
Remarks, supra note 48, ¶ 15.
79
See Hearings on Global Climate Change Before the Subcomm. on Int’l
Econ. Policy, Export and Trade Promotion of the Senate Foreign Relations
Comm., 105th Cong. (1997) [hereinafter Senate Subcomm. Climate Hearings]
(statement of Timothy Wirth, Under Secretary of State for Global Affairs),
available in 1997 WL 631222.
80
See id. at *14.
81
See id.
82
Id. at *9.
83
See id. at *11-12.
84
Id. at *16. As one solution to the question of developing country partici-
pation, the Clinton Administration proposed that the most affluent, non-Annex
I, developing countries (e.g., South Korea, Singapore, Saudi Arabia, and the
like) be placed in a new “Annex B” with different—and more stringent—com-
mitments than the poor developing countries. See Global Climate Negotiations,
s
upra note 26, at 63 (statement of Timothy Wirth, Under Secretary of State for
Global Affairs).
44 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
President Gore
85
and other Administration officials,
86
mirrored
the CBDR principle contained in the Climate Convention.
87
The phrasing of the Senate resolution (“limit or reduce”)
left room for the Clinton Administration to agree that develop-
ing countries should be able to increase their GHG emissions.
88
That is precisely what the United States diplomats proposed at
the Kyoto conference: American diplomats called for voluntary
commitments by developing countries (specifically excluding the
least developed among them) to “abate the increase” in their
emissions.
89
The U.S. diplomats said that developing country
85
See Vice President Al Gore, Press Conference at the United Nations
Comm. on Climate Change (Dec. 8, 1997) <http://www.state.gov/www/global/
oes/971208a_gore_cop.html>.
86
See Implications of the Kyoto Protocol on Climate Change, Hearing Before
the Senate Comm. on Foreign Relations, 105th Cong. 41 (1998) [hereinafter Im-
p
lications of Kyoto] (statement of Stuart E. Eizenstat, Under Secretary of State
for Econ., Bus. and Agric. Affairs). Therein Eizenstat said:
Some developing countries believe—wrongly—that the developed
world is asking them to limit their capacity to industrialize, reduce pov-
erty and raise their standard of living. . . .
. . . .
. . . In determining what developing countries ought to do, we should be
aware that the circumstances of developing countries vary widely, along a
kind of continuum. . . .
Any “one-size-fits-all” approach to the “meaningful participation of
developing countries” and to satisfy the Byrd-Hagel Resolution is thus
unlikely to prevail. . . .
. . . .
Recognizing our “common but differentiated responsibilities and re-
spective capabilities” it will be necessary to develop an approach that pro-
vides for a meaningful global response to the threat of global warming,
while acknowledging the legitimate aspirations of developing countries to
achieve a better life for their peoples. . . .
Id. at 45-46.
87
Wirth subsequently left the Clinton Administration, some say because he
thought the Administration’s proposals for lowering U.S. GHG emissions did
not go far enough. See, e.g., John H. Cushman, Jr. & David E. Sanger, No
Simple Fight: The Forces That Shaped the Clinton Plan, N.Y. T
IMES
, Dec. 1,
1997, at 3.
88
See William K. Stevens, Global Warming Talks Open in Kyoto, N.Y.
T
IMES
, Dec. 2, 1997, at A10; see also U.S. Delegation to the 3rd Conference of
the Parties: Press Briefing (Dec. 5, 1997) [hereinafter Press Briefing] <http://
www.state.gov/www/global/oes/971205_cop.html>.
89
One U.S. delegate at Kyoto (Daniel Reifsnyder, U.S. Department of
State) told reporters at a news conference that “[w]e fully acknowledge that
[the developing countries] are going to grow as their needs for development,
you know—as they seek to develop. But what we’re looking for, I think, is an
effort to try to, if you will, abate the increase in those emissions . . . .” Press
Briefing, supra note 88, ¶ 19. Another delegate (Robert Dixon, Director, U.S.
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 45
emissions targets could be growth targets and that such commit-
ments should not inhibit economic development in those coun-
tries.
90
In other words, the Clinton Administration wanted (and,
presumably, still wants) the large developing countries to plan
their future emissions and commit themselves to adhering to
those plans. The U.S. diplomats only wanted something—virtu-
ally anything—in the Protocol’s wording that would allow the
Administration to tell Congress that developing countries were
“limiting” their emissions in “meaningful” ways. Thus, the U.S.
position was not, as it was billed by almost everyone but the Clin-
ton Administration, an abrogation of the CBDR principle.
C
ONCLUSION
: F
ROM
K
YOTO TO
B
UENOS
A
IRES
AND
B
EYOND
The principle of common but differentiated responsibility
has been established in international environmental instruments
negotiated over the last few decades.
91
It is a recognition that all
countries are responsible for limiting damage to common global
environmental areas, but that the developed industrialized coun-
tries should take on much greater responsibility in preventing
and mitigating global pollution, and indeed in helping developing
countries in their own efforts to protect the global commons.
92
CBDR has moved from being a “soft” international legal princi-
ple (as in the Rio Declaration on Environment and Develop-
ment)
93
to a nascent but increasingly robust component of
international law (as demonstrated by its codification in the
Framework Convention on Climate Change).
94
According to the
Climate Convention, developed countries are required to reduce
their emissions of greenhouse gases; the developing countries,
which are required to take some minor actions on behalf of the
global climate (e.g., creating inventories of their GHG emis-
sions),
95
are not required by the treaty to reduce their GHG
Initiative on Joint Implementation) said that “we are interested in developing
countries at least agreeing to a process by which they would come to accept
their own binding targets, even though those might be growth targets.” Id.
32.
90
See id.; see also Bettelli et al., supra note 39, ¶ 210.
91
Cf. Biermann, supra note 10, at 426.
92
See id. at 432-65.
93
See Rio Declaration, supra note 15, princ. 7, 31 I.L.M. at 877.
94
See FCCC, supra note 1, art. 3(1), 31 I.L.M. at 854.
95
Even here the assumption is that they will receive assistance from the
developed countries in doing so. See id. art. 4(7), 31 I.L.M. at 858 (“The extent
to which developing country Parties will effectively implement their commit-
46 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
emissions. The Berlin Mandate and the recent Kyoto Protocol to
the Climate Convention reaffirmed this principle.
CBDR is not, in the U.S. interpretation, incompatible with
new “commitments” by some developing countries. What the
U.S. government wants is for the developing countries to plan
their GHG emissions increases and to adhere to those levels.
Bearing in mind provisions in the Climate Convention for finan-
cial assistance and technology transfer from the industrialized
countries and plans for more joint implementation projects, it is
probable that developing countries will bolster their economic
development and growth in the long term by undertaking such
commitments.
96
Developing countries have already taken many
steps to make themselves more energy efficient.
97
Indeed, by do-
ing so, they are saving scarce capital and making themselves
more competitive vis-`a-vis the United States and other industrial-
ized countries.
This brief examination of the CBDR principle and the U.S.
position with regard to it and climate change suggests at least two
things. First, U.S. support for CBDR bodes well for the princi-
ple’s future in international environmental law and suggests that
the North-South cooperation essential to effective international
environmental cooperation need not suffer a setback on this
score. The U.S. government—both the Administration and Con-
gress—supports the basic principle of CBDR (despite a prefer-
ence that some developing countries, especially the most affluent
ones and those with the largest economies, take on much greater
commitments).
98
The Senate made that support part of U.S. law
by ratifying the Climate Convention. Most importantly, as
demonstrated by the Senate debate, by statements from Presi-
ments under the Convention will depend on the effective implementation by
developed country Parties of their commitments under the Convention related
to financial resources and transfer of technology. . . .”).
96
“Joint implementation” generally refers to projects undertaken jointly by
firms or governments of both developed and developing countries, usually
meaning that entities in developed countries undertake GHG emissions limita-
tions in developing countries at costs lower than they would incur were those
limitations implemented at home. There is an ongoing dispute over whether
developing countries benefit from such programs. See Philippe Sands, P
RINCI-
PLES OF
I
NTERNATIONAL
E
NVIRONMENTAL
L
AW
I: F
RAMEWORKS
, S
TANDARDS
AND
I
MPLEMENTATION
, 132-33 (1995).
97
See Senate Subcomm. Climate Hearings, supra note 79, at *11-12.
98
See, e.g., Implications of Kyoto, supra note 86, at 46 (statement of Stuart
E. Eizenstat, Under Secretary of State for Econ., Bus. and Agric. Affairs).
1999] COMMON BUT DIFFERENTIATED RESPONSIBILITY 47
dent Clinton and members of Executive agencies, and by the po-
sitions of U.S. diplomats in international negotiations, the United
States approaches questions of climate change commitments with
the underlying assumption that the essential character of the
CBDR principle should be upheld.
This is positive news. If the developing countries recognize
that the U.S. position is one of fundamental support for common
but differentiated responsibility, they are more likely to partici-
pate in efforts to protect the climate of the earth. The question is
whether diplomats can find wording for a side agreement to the
Kyoto Protocol that meets the Senate’s requirement for those
countries to agree to “new specific scheduled commitments to
limit” their GHGs but that does not require those countries to
make near-term reductions or to sacrifice their economic devel-
opment goals. The latter is the stated objective of the Clinton
Administration and many Senators.
99
This leads to an important second point highlighted by this
situation: the U.S. position is actually an opportunity for climate
change negotiators as they prepare for future international delib-
erations.
100
At Kyoto, U.S. diplomats called on the developing
countries to agree to voluntary schedules for GHG emissions in-
creases (i.e., “limitations”).
101
This proposal, though rejected by
most developing countries at the time, could serve as the basis
for negotiation of a side agreement to the Kyoto Protocol.
An agreement along these lines would not place any binding
commitments on the developing countries; they would be free, if
they so choose, to focus on their economic growth and to do as
little as the United States did in the years following its ratifica-
tion of the voluntary commitments in the Climate Convention.
However, such an agreement would place the largest and most
affluent developing countries on a clearer path toward energy ef-
ficiency and GHG limitations. Such a path is essential if climate
change is to be addressed effectively in the long term. Since the
developing countries will suffer the greatest harm from future cli-
mate changes, they stand to benefit the most from preventative
99
See id. at 45; 143 C
ONG
. R
EC
. at S8117 (daily ed. July 25, 1997) (statement
of Sen. Byrd); id. at S8120 (statement of Sen. Kerry).
100
For details of the U.S. positions in the run-up to the November 1998 con-
ference of the parties in Buenos Aires, see Paul G. Harris, Les
´
Etats-Unis: Un
J
oueur Cl´e [Key Issues in U.S. Climate Change Policy: A Buenos Aires Preview],
39 L
IAISON
E
NERGY
F
RANCOPHONIE
11, 15 (1998).
101
See Press Briefing, supra note 88, ¶ 18.
48 N.Y.U. ENVIRONMENTAL LAW JOURNAL [Volume 7
actions taken now. They will also benefit from having energy-
efficient industries and economies that will be more competitive
in the globalized free-market economy.
Building on the U.S. proposal at Kyoto, developing coun-
tries would reaffirm that they have “common” responsibilities to
address climate change, but their responsibilities would remain
firmly “differentiated” from those of the more responsible and
much more capable industrialized countries. The CBDR princi-
ple would remain a guiding norm in the international climate
protection regime. Such an agreement would also mean that the
Kyoto Protocol itself would stand a much better chance of being
ratified by the U.S. Senate and gaining Congressional funding.
While the United States will limit its GHG emissions even if it
never becomes a legal party to the Protocol, ratification and Con-
gressional consent are essential if the U.S.—still the largest emit-
ter of greenhouse gases—is to take the major steps necessary to
substantially reduce its pollution of the earth’s atmosphere.