A U.S.-centric Chronology of the
International Climate Change Negotiations

Jane A. Leggett
Specialist in Energy and Environmental Policy
January 7, 2010
Congressional Research Service
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www.crs.gov
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CRS Report for Congress
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repared for Members and Committees of Congress

A U.S.-centric Chronology of the International Climate Change Negotiations

Summary
Under the 2007 “Bali Action Plan,” countries around the globe sought to reach a “Copenhagen
agreement” in December 2009 on effective, feasible, and fair actions beyond 2012 to address
risks of climate change driven by human-related emissions of greenhouse gases (GHG). The
Copenhagen conference was beset by strong differences among countries, however, and (beyond
technical decisions) achieved only mandates to continue negotiating toward the next Conference
of the Parties (COP) to be held in Mexico City in December 2010. The COP also “took note of”
(not adopting) a “Copenhagen Accord,” agreed among the United States and additional countries
(notably including China), which reflects compromises on some key actions.
As background to the ongoing negotiations, this document provides a U.S.-centric chronology of
the international policy deliberations to address climate change from 1979-2009. It begins before
agreement on the United Nations Framework Convention on Climate Change (UNFCCC) in
1992, and proceeds through the Kyoto Protocol in 1997, the Marrakesh Accords of 2001, the Bali
Action Plan of 2007, and the Copenhagen conference in 2009. The Bali Action Plan mandated the
Copenhagen negotiations on commitments for the period beyond 2012, when the first
commitment period of the Kyoto Protocol ends. This chronology identifies selected external
events and major multilateral meetings that have influenced the current legal and institutional
arrangements, as well as contentious issues for further cooperation.
Negotiations underway since 2007 have run on two tracks: one under the Kyoto Protocol (which
is subsidiary to the Convention), to extend commitments of developed, Annex I, Parties beyond
2012. This track excludes the United States, which is not a Party to the Kyoto Protocol and has
said it will not join the Protocol. The second track proceeds directly under the Convention under
the Bali Action Plan and focuses on five primary elements: a “shared vision” for reducing global
GHG emissions by around 2050; mitigation of greenhouse gas emissions; adaptation to impacts
of climate change; financial assistance to low income countries; and technology development and
diffusion. Among the most difficult issues have been provisions for mutual assurance of
compliance among Parties through measurement, reporting, and verification (MRV) of GHG
emissions and removals, nationally appropriate mitigation actions, and financial and technical
support from the wealthiest countries for adaptation, technology, and capacity-building. Some
progress has been made on arrangements to reduce emissions from deforestation and forest
degradation
(REDD-plus). However, Parties did not reach consensus in Copenhagen on any of
these elements, and the mandates for negotiation on the two tracks have been extended into 2010.
The Copenhagen Accord may represent a supplemental or alternative track. Currently, the way
forward remains unclear.
Many in the U.S. Congress are concerned with the goals and obligations that a treaty or other
form of agreement might embody. A particular concern regards parity of actions and trade
competitiveness effects among countries. For U.S. legislators, additional issues include the
compatibility of any international agreement with U.S. domestic policies and laws; the adequacy
of appropriations, fiscal measures, and programs to achieve any commitments under the
agreement; and the desirable form of the agreement and related requirements, with a view toward
potential Senate ratification of the agreement and federal legislation to assure that U.S.
commitments are met.

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A U.S.-centric Chronology of the International Climate Change Negotiations

Contents
Overview of the International Climate Change Negotiations........................................................ 1
The United Nations Framework Convention on Climate Change ................................................. 2
The Kyoto Protocol..................................................................................................................... 2
The Bali Action Plan and Kyoto Protocol Tracks ......................................................................... 3
The Copenhagen Sessions and the “Copenhagen Accord”............................................................ 4
Congressional Interests in International Issues............................................................................. 6
U.S.-centric Chronology of International Climate Change Negotiations, 1979-2009 .................... 7

Contacts
Author Contact Information ...................................................................................................... 10

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A U.S.-centric Chronology of the International Climate Change Negotiations

Overview of the International Climate Change
Negotiations

Formal international negotiations were launched in December 1990 to address human-driven
climate change. These negotiations on a Framework Convention on Climate Change marked the
progress of decades of scientific research toward conclusions—with uncertainties—that have
remained remarkably stable in the years since: greenhouse gas (GHG)1 emissions from human-
related activities are very likely causing the major portion of climate change observed in recent
decades and, if these continue, could lead to potentially catastrophic impacts on human societies
and their environment. Predicting the precise timing, magnitude and implications of changes
remains subject to a variety of uncertainties; many questions may not be resolvable in a
timeframe consistent with making effective and cost-effective decisions to address the risks of
climate change. Only concerted global action can stabilize GHG concentrations, since emissions
come from all countries. China has surpassed the United States as the leading emitter of GHG,
although the United States historically has contributed more—almost one-fifth of the rise of GHG
concentrations in the atmosphere. The greatest growth in GHG emissions is expected from
countries, such as China, India and Brazil, that historically have contributed less, now emit much
less per person, and have lower economic and governance capabilities to address the problem.
The core issues for negotiation in 1990 remain the same today:
• when and by how much to reduce greenhouse gas emissions globally in order to
avoid “dangerous anthropogenic interference with the climate system”;2
• how to share “common but differentiated responsibilities” among countries taking
into account “historic contributions” and “respective capacities” of different
people—in particular, the acceptable degree of participation of developing
countries;
• what mechanisms are best suited to assuring GHG reductions by all parties at the
lowest cost, respecting national sovereignty and while supporting “sustainable
economic development
” and “the eradication of poverty”;

1 “Greenhouse gases” are defined in the United Nations Framework Convention on Climate Change as “those gaseous
constituents of the atmosphere, both natural and anthropogenic [human-driven] that absorb and re-emit infrared
radiation.” They may alter the composition of the atmosphere, changing the balance of radiation entering and leaving
the Earth system, and consequently change the temperature or patterns of climate on Earth. The most important is water
vapor, but it is believed not to be altered by human activities. Carbon dioxide (CO2) is the most important human-
related GHG, with about ¾ from fossil fuel use and about ¼ due to land use change and forestry. Other important gases
listed under the Kyoto Protocol are methane (CH4), nitrous oxide (N2O, hydrofluorocarbons (HFC), perfluorocarbons
(PFC) and sulfur hexafluoride (SF6). Additional greenhouse gases are partially controlled internationally under the
Montreal Protocol of the Vienna Convention for the Protection of the Ozone Layer, including chlorofluorocarbons
(CFC) and hydrochlorofluorocarbons (HCFC), etc., while others are emerging (e.g., nitrogen trifluoride (NF3). Other
radiatively important substances are significant but difficult to treat similarly, such as aerosols or tropospheric ozone.
2 Terms used particularly in association with the international climate change negotiations are frequently highlighted in
italics in this document, to alert the reader to their significance.
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• how cooperatively to understand the risks and facilitate adaptation to climate
changes, especially by those least able to cope on their own; and
• how to adapt international arrangements over time as science, social conditions,
and capabilities evolve.
The United Nations Framework Convention on
Climate Change

The international negotiations launched in 1990 culminated in the 1992 adoption of the United
Nations Framework Convention on Climate Change (UNFCCC) in Rio de Janeiro, Brazil. The
United States was the fourth nation to ratify the UNFCCC, and the first among industrialized
countries. As of November 2008, 192 governments are Parties to the UNFCCC. As a framework
convention, this treaty provides the structure for collaboration and evolution of efforts over
decades, as well as the first step in that collaboration. The UNFCCC does not, however, include
measurable and enforceable objectives and commitments.3 By the time the treaty entered into
force and the Conference of the Parties (COP) met for the first time in 1995, the Parties agreed
that achieving the objective of the UNFCCC would require new and stronger GHG commitments,
though the Berlin Mandate deferred any new commitments for developing countries for future
agreements. The resulting 1997 accord, the Kyoto Protocol, pledged to reduce the net GHG
emissions4 of industrialized country Parties (Annex I Parties) to 5.2% below 1990 levels in the
period of 2008 to 2012. It also pledged to assess the adequacy of these commitments early in the
new century.
The Kyoto Protocol
The United States signed the Kyoto Protocol in December 1997. However, opposition in the U.S.
Congress was strong. In the “Byrd-Hagel” Resolution5 in July 1997, the Senate expressed its
opposition (95-0 vote) to the terms of the Berlin Mandate, by stating that the U.S. should not sign
any treaty that does not include specific, scheduled commitments of non-Annex I Parties in the
same compliance period as Annex I Parties, or that might seriously harm the U.S. economy. The
Kyoto Protocol (KP) was not submitted to the Senate for ratification by President Clinton, nor by
his successor, President George W. Bush. Newly elected President Bush announced in 2001 that
the United States would oppose the agreement because it did not include GHG commitments by
other large emitting (developing) countries and because of his conclusion that it would cause
serious harm to the U.S. economy. As of November 1, 2008, 183 governments had become
Parties to the Kyoto Protocol, with the United States and Kazakhstan6 being the only

3 The commitment by industrialized Parties to prepare national action plans aiming to reduce GHG emissions to 1990
levels is measurable, but no effective penalties or mechanisms were established to address any non-compliance with
obligations.
4 “Net” emissions are the gross emissions minus the removals of GHG from the atmosphere by “sinks” (sequestration),
particularly by growing forests and other vegetation (or prevention of release of GHG by burning or decomposing
vegetation).
5 S.Res. 98.
6 Kazakhstan is unusual in being considered an Annex I Party for the purposes of the Kyoto Protocol, but not for the
purposes of the UNFCCC, once it ratifies the Kyoto Protocol [COP report FCCC/CP/2006/5].
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industrialized countries to remain outside of the Kyoto Protocol. In KP Article 9, the Parties to
The Kyoto Protocol agreed to begin a process no later than 2005 to consider commitments
beyond 2012, when the first commitment period ends.
The Bali Action Plan and Kyoto Protocol Tracks
In 2007, Parties agreed to establish two tracks for negotiation of further commitments of Parties.
The first track was a mandate among the Kyoto Protocol Parties (not including the United States)
to pursue an amendment to the Protocol on further commitments of Annex I Parties for period(s)
beyond the year 2012. The first commitment period runs from 2008 through 2012.
The second track was established in December 2007, when the Conference of the Parties (COP)
to the UNFCCC agreed to a “Bali Action Plan” to negotiate new GHG mitigation targets for
Annex I Parties, “nationally appropriate mitigation actions” for non-Annex I Parties, and other
commitments for the post-2012 period. The mandates specified that the products of negotiation
should be ready by the end of 2009, for decision at the 15th meeting of the COP and the fifth
meeting of the COP/MOP, in Copenhagen, Denmark. The form(s) of agreement were not clear,
nor how the two negotiating tracks might converge.
The key items for the “Copenhagen” negotiations to address climate change beyond 2012 were:
• mitigation of climate change (primarily to reduce GHG emissions or to enhance
removals of carbon by forests and other vegetation “sinks”);
• adaptation to impacts of climate change;
• financial assistance to low income countries;
• technology development and transfer; and
• a shared vision for long-term goals and action.
In addition, provisions for “monitoring, reporting, and verification” (MRV) permeated the
negotiations. Provisions to reduce GHG emissions from deforestation and forest degradation
(REDD-plus) were also pursued under the Bali Action Plan.
Four meetings in 2008 and four in 2009 were scheduled, along with numerous inter-sessionals,
regional group meetings, ministerials, and summits, in an ambitious attempt to reach an
agreement of some kind by the Copenhagen meetings in December 2009. In Poznan, Poland, at
the 14th COP, Parties decided to “shift into full negotiating mode” and that a first, full negotiating
text should be available for a meeting in Bonn in June 2009. Under the UNFCCC, all bases for
amending the Convention or a Protocol must be proposed at least six months before adoption.
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The Copenhagen Sessions and the “Copenhagen
Accord”

It may take many months to evaluate the practical outcomes of the Copenhagen negotiations
under the UNFCCC and the Kyoto Protocol. Despite the determination evidenced by participation
by 193 delegations and 119 heads of state, strong disagreements on substance and process yielded
results far below the (arguably unrealistic) expectations of many stakeholders. Formal decisions
were largely technical. Both the COP and COP/MOP extended negotiating mandates into 2010.
Progress was made on draft texts regarding some elements, such as pledges to commit to further
GHG reductions by Annex I Parties, assistance for reducing emissions from deforestation and
forest degradation, adaptation, and goals for financial assistance.
The sessions revealed distance among many countries’ “bottom lines,” leaving no space for
consensus on major issues, such as the form and structure of agreements; obligations for GHG
reductions and actions; whether commitments should be legally binding; and acceptable
provisions for monitoring, reporting, and verification (MRV). Given the inability to reach
consensus among the 193 delegations present, the United States, China, Brazil, India, and South
Africa negotiated a “Copenhagen Accord” that bridges some difficult differences and identifies a
common and differentiated path forward. While most UNFCCC Parties seemed willing to adopt
the Copenhagen Accord, it was blocked by Bolivia, Cuba, Sudan, and Venezuela, arguing that the
closed-door deal-making violated the procedures of the United Nations Charter. Tuvalu and some
other nations rejected the agreement for not assuring, in their views, sufficiently deep GHG
reductions. Consequently, the COP only “took note” of the text, but did not adopt it. Hence, the
Copenhagen Accord is a political outcome, not a legal agreement. Willing countries will be
invited to join it. Nonetheless, President Obama was reported to have said “We should still drive
toward something that is legally binding,” a view held by most countries.
The Copenhagen Accord states a commitment (“shall”) to “enhance our long-term cooperative
action to combat climate change.” In this regard, the Copenhagen Accord outlines a number of
key points for action:
Long-term vision for GHG mitigation: “Deep cuts” in global emissions are
required “with a view to ... hold the increase in global temperature below 2
degrees C.”
GHG mitigation by both Annex I and non-Annex I Parties: Annex I Parties
report GHG mitigation targets for 2020, and non-Annex I Parties report their
mitigation actions, both before February 1, 2010, to be compiled in non-binding
documentation. Least Developed Countries and small island developing states
become a new mitigation grouping that may identify actions voluntarily and with
financial support.
Transparent reporting and international review of Parties’ mitigation while
respecting national sovereignty: Non-Annex I Parties must submit their
National Communications bi-annually, and include reports on their domestic
MRV of implementation of their mitigation actions, subject to international
consultations and analysis
that will ensure respect for national sovereignty.
Mitigation actions (as well as technology, financing and capacity-building)
supported by international finance will be subject to international MRV.
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Immediate establishment of a mechanism including REDD-plus,7 to enable
mobilization of international financing.
Goals for developed countries to mobilize finance for adaptation, mitigation,
technology, and capacity-building: Pledges of $30 billion during 2010-2012,
and a goal of $100 billion annually by 2020 “in the context of meaningful
mitigation actions and transparency on implementation.” Funding will come from
public and private, bilateral and multilateral, and alternative sources.
Establishment of the Copenhagen Green Climate Fund under the Global
Environment Facility, managed by the World Bank to support international
financing.
Establishment of a Technology Mechanism to “accelerate technology
development and transfer” and to be “guided by a country-driven approach.”
Assessment of the Copenhagen Accord, to be completed by 2015, that would
include consideration of strengthening the “long-term goal” of the Accord.
The Copenhagen Accord identifies a number of administrative decisions made to carry it out
fully. These include development of guidelines for non-Annex I Parties’ biannual National
Communications; guidelines for “international consultations and analysis” of non-Annex I
Parties’ nationally appropriate mitigation actions; guidelines for MRV of nationally appropriate
mitigation actions supported internationally; a mechanism to include REDD-plus; a mechanism
of a High Level Panel to study potential sources of financing; the Copenhagen Green Climate
Fund and its operational rules; a Technology Mechanism and its functions; and (after a few years)
an assessment of implementation of the Accord.
A number of major proposals were notably not part of the final Copenhagen Accord:
• a target to avoid 1.5oC increase in global temperature (opposed by China);8
• that GHG emissions be cut by 2050 by 50% globally, and by Annex I countries
by 80% (opposed by China; supported by a couple of developing countries);
• that there be a year by which global emissions would peak and then decline
(opposed by China and other major developing country emitters);
• that non-Annex I countries reduce their emissions by 15-30% below business-as-
usual projections by 2020 (opposed by China and other developing country
emitters);
• specification of a baseyear (e.g., pre-industrial levels or 1990) for the aspirational
target of avoiding global mean temperature increases of more than 2oC (3.6oF),
(opposed by China);

7 “REDD-plus” is Reducing Emissions from Deforestation and Forest Degradation plus enhancing carbon
sequestration.
8 Although many critics accuse the United States of a number of faults in the Copenhagen negotiations, a number have
identified China as the sole obstacle to many points of potential agreement. One such account is Mark Lynas, “How Do
I Know China Wrecked the Copenhagen Deal? I Was In the Room” The Guardian, London, December 22, 2009.
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• provisions that would make the Copenhagen Accord legally binding (opposed by
China); and
• specification of specific amounts of funding to be pledged by individual Annex I
Parties (opposed by the United States).
The process from Copenhagen to the next meeting of the COP, in Mexico City in December 2010,
remains undefined. Two countries have offered to host related summits to facilitate progress.
Bolivia has called an “alternative” meeting of indigenous peoples, social movements,
environmentalists, scientists, and governments.
Fundamental disagreement remains on whether the outcome of further negotiations should be one
or two agreements, or three if the Copenhagen Accord follow-up is included. The Copenhagen
outcome leaves two separate negotiating mandates on the table, and no texts have been agreed on
as the basis for further negotiations. COP-16 will be hosted by Mexico in December 2010. This
meeting, which had been expected to set in motion the implementation of a Copenhagen
agreement, may take on a very different function depending on processes and actions in 2010 that
have yet to be defined. It also remains to be seen whether countries will be able and willing to
move beyond the disarray and deadlocks witnessed in Copenhagen.
Congressional Interests in International Issues
International cooperation would be required to achieve the ranges of long-term targets for GHG
mitigation and successful adaptation to climate change impacts. For U.S. legislators, assurance of
actions by other major emitters is key to acceptability of U.S. mandates to abate emissions.
Additional important issues include the compatibility of any international agreement with U.S.
domestic policies and laws; the adequacy of appropriations and fiscal incentives to achieve any
commitments under the agreement; and the desirable form of the agreement and any requirements
for potential ratification and implementing legislation. Many Members of Congress are also
attentive to questions of comparability of GHG actions among major trading partners, and
especially to the potential for adverse competitiveness effects if some countries do not mandate
GHG reductions.
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U.S.-centric Chronology of International Climate
Change Negotiations, 1979-2009

1979
First World Climate Change Conference estimates that a doubling of carbon dioxide (CO2) concentrations
over pre-industrial levels would eventual y lead to a 1.4-4.5oC increase in global mean temperature (GMT).
1987
In the Montreal Protocol, 57 governments agree to phase-out production of substances that deplete
stratospheric ozone. Many of these substances, such as CFCs are also powerful and long-lasting greenhouse
gases (GHG), implicated in climate change.
1985
Major scientific conference in Villach, Austria, reviews decades of observations and research, and calls for
policy analysis and actions to slow the rate of GHG-induced climate change.
1988
Experts to the Toronto Conference on the Changing Atmosphere cal for a reduction of global CO2 emissions
by 20% from 1988 levels by the year 2005.
November
Governments establish the Intergovernmental Panel on Climate Change (IPCC) under the joint auspices of the
1988
UN World Meteorological Organization and the UN Environment Programme, to assess climate change
research for governmental decision-making.
1990
Global
CO2 concentrations in the atmosphere are about 354 parts per million (ppm), compared to pre-
industrial concentrations of about 280 ppm in 1750. Global CO2 emissions are 21 billion tons annually, with
4/5 from industrialized countries (1/5 from the United States). Developing countries, home to 80% of the
world’s population, emit 1/5th of global GHG emissions, not projected to reach 50% until around 2025.
1990
First Assessment Report of the IPCC concludes that human activities emit greenhouse gases (GHG) that have
increased atmospheric concentrations; these may be causing observed increases in global mean temperature
(GMT), and could drive future global warming. The human contribution could not be confirmed, however, for
up to a decade.
1990
The United Nations General Assembly establishes the Intergovernmental Negotiating Committee for a
Framework Convention on Climate Change.
June 1992
The United Nations Framework Convention on Climate Change (UNFCCC) opens for signature at the United
Nations Conference on Environment and Development (UNCED) in Rio de Janeiro, Brazil. The treaty cites
common but differentiated responsibilities and respective capabilities of all Parties, with an objective of avoiding
dangerous anthropogenic interference with the climate system. It includes commitments of developed country
“Annex I” Parties to establish national action plans with measures that aim (i.e., non-binding) to reduce GHG
emissions to 1990 levels by the year 2000. Includes obligations for Parties listed in Annex II (including the
United States) to provide technical and financial assistance, report GHG emissions, and additional obligations.
The Global Environment Facility (GEF) is named the interim financial mechanism of the UNFCCC. Non-Annex
I Parties have general obligations, including for GHG mitigation, adaptation planning, and reporting.
1 October
The United States becomes the first industrialized nation to ratify the UNFCCC.
1992
21 March
Entry into Force of the UNFCCC, fol owing ratification by 50 countries. (As of November 2008, 192
1994
governments have ratified the UNFCCC.)
March-April
In Berlin, Germany, the first meeting of the Conference of the Parties (COP-1) reviews the adequacy of
1995
commitments under UNFCCC Articles 4.2(a) and (b) and concludes they are inadequate. It therefore adopts
the Berlin Mandate, initiating negotiations for the post-2000 period to strengthen the GHG commitments of
Annex 1 Parties, but no new commitments for non-Annex 1 Parties. The COP also agrees to a Pilot Phase for Joint
Implementation, and to establish two entities: the Subsidiary Body on Implementation (SBI) and the Subsidiary
Body on Scientific and Technological Advice (SBSTA).
July 1997
The U.S. Senate passes (95-0) the Byrd-Hagel Resolution, that the United States should not enter into any
international agreement that does not include obligations for developing countries in the same period, or that
would seriously harm the U.S. economy.
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December
The
Kyoto Protocol to the UNFCCC is adopted, signed by more than 150 countries. It sets a goal of reducing
1997
industrialized countries’ GHG emissions to 5% below 1990 levels during the first commitment period of 2008-
2012, and lists assigned amounts of allowable GHG emissions by Parties in Annex B. It provides for flexibility
mechanisms, including trading of assigned amounts, Joint Implementation, and the Clean Development
Mechanism. It outlines a compliance mechanism, and requires reporting by Parties. Many implementing rules
remain to be negotiated, covering operations of the flexibility mechanisms, how to account for land-based
carbon sequestration, the nature of the compliance regime, etc. The Protocol would enter into force when 55
countries, including at least 55% of 1990 GHG emissions, have submitted papers of ratification.
1998
The COP agrees to the Buenos Aires Plan of Action, with a deadline of 2000 to finalize rules to implement the
Kyoto Protocol. The United States continues to press developing countries to take on voluntary commitments
to reduce GHG emissions.
November
In the Hague, Netherlands, the sixth COP discussions col apse, suspended without agreement on rules to
2000
implement the flexibility mechanisms in the Kyoto Protocol. Parties agree to resume talks at “COP-6bis” in July
2001.
January-May
The IPCC releases its Third Assessment Report, concluding that global temperature and precipitation continue
2001
to increase, and effects can be observed in decreasing snow and ice extent, melting glaciers, altered seasonality,
and other indicators of climate. The observed CO2 concentration has not been exceeded during the past
420,000 years and likely not during the past 20 million years. Most of the observed warming over the last 50
years is likely due to the increased GHG concentrations, most of which results from fossil fuel use. Without
concerted actions to abate GHG emissions, atmospheric CO2 concentrations could rise to 540 to 970 ppm by
2100—90 to 250% above the 280 ppm level in the year 1750. Associated global average temperature could rise
over 1990 by 1.4o to 5.8°C (3.2oF to 14.4oF) by 2100; some regions would change more than others.
March 2001
President George W. Bush announces United States’ opposition to the Kyoto Protocol, and becomes an
Observer (not a Party) to deliberations concerning the Protocol.
July 2001
At COP-6bis, the United States participates for the first time as an observer, not a party to the Kyoto
Protocol discussions. Decisions are made on use of the flexibility mechanisms (emissions trading, joint
implementation and the Clean Development Mechanism), carbon sinks, emission penalties for non-compliance,
and to establish three new financial mechanisms: the Special Climate Change Fund, the Least Developed
Country Fund, and the Adaptation Fund.
December
COP-7
adopts
the
Marrakesh Accords, establishing most rules and guidelines for the Kyoto Protocol to operate,
2001
especially for the three flexibility mechanisms: the Clean Development Mechanism, Joint Implementation, and
Al owance Trading. To support adaptation in developing countries, agreements include: (1) replenishment of
GEF to address needs of developing countries due to adverse effects of climate change or of response
measures; (2) establishment of Special Climate Change Fund (SCCF) to support adaptation and technology
transfer; (3) establishment of a Least Developed Country Fund (LDC Fund), with guidance on its operation;
and (4) establishment of an Adaptation Fund under the Kyoto Protocol. The Parties also establish an LDC
work program and the LDC Expert Group (LEG), funding for National Adaptation Programs of Action and
additional implementation support. The United States participates for the first time as an Observer in
deliberations related to the Kyoto Protocol.
November
COP-8 issues a modest Delhi Declaration on Climate Change and Sustainable Development.
2002
Summer
Exceptional heat and air pol ution in Western Europe are associated with more than 70,000 excess deaths.
2003
Scientific research indicated that global warming had at least doubled the chance of occurrence of the extreme
heatwave.
30 October
The first U.S. Senate vote on legislation to control GHG through a cap-and-emissions trading system, the
2003
McCain-Lieberman Climate Stewardship Act, fails (43-55), but gains more support than had been expected.
December
COP-9 reaches several breakthrough decisions on credits for carbon absorption by forest sinks, as wel as the
2003
Special Climate Change Fund (SCCF) and the Least Developed Countries Fund (LDC Fund).
November
The Arctic Climate Impact Assessment concludes “Climate change, together with other stressors ... presents a
2004
range of challenges for human health, culture and well-being of Arctic residents ... as well as risks to Arctic
species and ecosystems.” Indigenous peoples link climate change impacts to human rights.
December
COP-10 increases focus on adaptation and approves the Buenos Aires Programme of Work on Adaptation and
2004
Response Measures. Brazil and China submit their first National Communications to the UNFCCC.
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1 January
The European Union’s Emissions Trading System (ETS) begins, permitting GHG allowance trading among 12
2005
thousand companies.
16 February
The Kyoto Protocol enters into force after Russia’s ratification meets the requirement for ratification by
2005
Parties representing at least a 55% super-majority of CO2 emissions (the requirement for at least 55 Parties to
the UNFCCC having already been met).
2005
China announces ambitious energy efficiency and renewable energy policies.
25 June
The U.S. Senate passes a Sense of the Senate Resolution (Amendment to H.R. 6) calling on Congress to enact
2005
“comprehensive and effective ... mandatory, market-based limits” to slow, stop, and reverse the growth of
GHG emissions, at a rate and in a manner that would not “significantly harm” the U.S. economy.
27 July 2005 The United States announces the Asia-Pacific Partnership on Clean Development and Climate (APP), to
cooperate on reducing the GHG intensity of their economies through voluntary technology exchanges. The
APP includes the United States, Australia, Canada, China, India, Japan, and South Korea, and includes
participation by the private sector.
November-
In Montreal, Canada, the first “Conference of the Parties serving as the Meeting of the Parties to the Kyoto
December
Protocol” (CMP) meets. After the U.S. delegation walks out of the meeting, the COP agrees to two parallel
2005
tracks to consider actions in the post-2012 period, the Ad Hoc Working Group on Further Commitments for
Annex I Parties under the Kyoto Protocol (AWG-KP), and another dialogue to be established under the
UNFCCC.
6 June 2006
After a week of debate, the U.S. Senate rejects (38-60) the McCain-Lieberman proposal to establish a system
of tradable allowances to reduce GHG emissions in the United States.
November
In Nairobi, Kenya, COP-12 and CMP-2 reach agreements concerning the Adaptation Fund, the Nairobi Work
2006
Programme on Adaptation, and the Nairobi Framework on Capacity Building for the CDM.
10 January
Commission of the European Union states a new policy of limiting global warming to 2o Celsius to reduce its
2007
GHG emissions unilateral y by 20% below 1990 levels by 2020, and to 30% below if other countries join in.
February-
The IPCC releases its Fourth Assessment Report, concluding that “warming of the climate system is
May 2007
unequivocal” and that “[m]ost of the observed increase in globally averaged temperatures since the mid-20th
century is very likely due to the observed increase in anthropogenic GHG concentrations.” By 2005, the global
atmospheric concentration of CO2 is 379 ppm, up 25 ppm since 1990, and up more than 35% over the pre-
industrial level; the primary source of that increase is fossil fuel use and the second is land use change. While
the United States adds about 18% of global GHG emissions, the emissions from China may have become the
highest of any country.
April 2007
U.S. Supreme Court decides in Massachusetts v. EPA that GHG are air pollutants and that EPA must exercise
the authority granted to it by the Clean Air Act to consider regulating these emissions.
May 2007
U.S. President Bush initiates the Major Economies Meetings (MEM) to negotiate a new post-2012 framework
among a small group of countries, to develop a long-term global goal and “to complement ongoing UN
activity.”
31 August
In Vienna, Parties to the Kyoto Protocol agree to consider a range of GHG reduction targets of 25% to 40%
2007
below 1990 levels for industrialized countries by 2020, though this range is resisted by Canada, Japan and
Russia.
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At the first Major Economies Meeting (MEM), hosted by the United States, U.S. President George Bush pledges
September
$2 billion over three years for a Clean Technology Fund (CTF) under the World Bank, expecting to raise $10
2007
billion among donors to support concessional financing for energy projects in developing countries. Some
environmental groups oppose inclusion of coal electricity in permitted project types.
December
COP-13 agrees to the “Bali Action Plan”—establishes the Ad Hoc Working Group on Long-term Cooperative
2007
Action (AWG-LCA) with a mandate for Parties to the UNFCCC to negotiate toward new GHG mitigation
actions and commitments in the post-2012 period and to reach agreement by the end of 2009 (at COP-14
meeting in Copenhagen, Denmark). The Bali Action Plan calls for “a shared vision for long-term cooperative
action” and identifies 4 main elements: mitigation, adaptation, technology, and finance. Additional decisions
place management of the Adaptation Fund under the World Bank, and initiate demonstrations and
commitments to reduce deforestation.
15 May
The U.S. Senate votes (55-40) that no new mandates on GHG should be enacted without effectively addressing
2008
imports from China, India and other nations without similar programs.
Congressional Research Service
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A U.S.-centric Chronology of the International Climate Change Negotiations

August 2008 In Accra, Ghana, exchange of views under the AWG-LCA continues on alternative approaches to “shared
vision,” mitigation, adaptation, technology and finance. Any question of differentiation among non-Annex I
Parties continues to be contentious, with China and the G-77 maintaining solidarity. Some developing countries
argue that the AWG-LCA and AWG-AP are not mandated to consider amendments to the UNFCCC or
Kyoto Protocol, only implementation of them. Some delegations support worldwide sectoral approaches,
which some developing countries argue would be inappropriate for them. Developing countries frequently cal
for new mechanisms for each issue, and oppose “conditionality” on financial and technology transfers (such as
protection of intellectual property rights). The AWG-KP agree on a comprehensive “basket approach” to
including multiple GHG in the second commitment period, and notes new groups of gases and new gases
(e.g.,NF3) identified by the IPCC AR4. It notes that the Montreal Protocol phases out production of CFC and
HCFC, but not their emissions. Analysis will proceed on various “spillover” effects of mitigation actions.
September
Government of Japan proposes that al Parties adopt a “shared vision” of achieving at least 50% reduction of
2008
global GHG emissions by 2050. Global GHG emissions should peak in the next 10 to 20 years. It proposes
criteria for entering additional countries into Annex I (i.e., to become countries with commitments), to create
comparability of efforts for GHG targets among Annex I Parties, according to sectoral emissions, efficiencies,
and reduction costs, and for new GHG commitments among three groups of developing countries.
December
In Poznan, Poland, a high-level segment of COP-14 witnesses political statements on a “shared vision for long-
2008
term cooperative action,” and agrees to intensify negotiations. Parties agree that a full negotiating text should
be available by June 2009. Parties also resolve issues regarding the Adaptation Fund, though developing
countries did not achieve commitments for additional adaptation monies.
The Government of Mexico, among the first non-Annex I Parties to offer a GHG reduction commitment,
announces a goal to halve GHG emissions from 2002 levels by 2050. Brazil pledges to cut deforestation by at
least 50% by 2017.
1-12 June
In Bonn, 30th sessions of the UNFCCC subsidiary bodies—SBSTA-30 and SBI-30; AWG-LCA-6 and AWG-KP-
2009
8. Deliberation begins on a first negotiating text for a post-2012 agreement.
December
COP-15 and COP/MOP-5 deliberate on multiple proposed texts without agreement, and decide to extend the
2009
negotiating mandates of AWG-LCA and AWG-KP through 2010. Key disagreements include whether the
product should be two agreements (one being amendment of the Kyoto Protocol) or one merged text;
whether obligations should be legally binding; and whether developing countries’ mitigation actions and results
should be measurable. COP-15 also “takes note of” the “Copenhagen Accord” negotiated among United
States and roughly 30 countries outlining process to pledge (by February 1, 2010) national targets or actions to
mitigate GHG emissions; $30 billion of financing from 2010-2012; and to seek $100 billion annually of a variety
of types of financing by 2020.


Author Contact Information

Jane A. Leggett

Specialist in Energy and Environmental Policy
jaleggett@crs.loc.gov, 7-9525


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