List of abbreviations relating to climate change

This is a list of abbreviations relating to climate change causation, adaptation and mitigation.

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• Numerical
• References

A

• ADP - Ad Hoc Working Group on the Durban Platform for Enhanced Action
• AGN - African Group of Negotiators
• APA - Ad Hoc Working Group on the Paris Agreement ^[1]
• APP - Asia-Pacific Partnership on Clean Development and Climate
• AR4 - Fourth Assessment Report of the IPCC (2007)
• AR5 - Fifth Assessment Report of the IPCC (2014)
• AR5 SYR - Synthesis Report of AR5 ^[2]
• AR6 - Sixth Assessment Report of the IPCC (published on 9 August 2021)
• AWG-KP - Ad Hoc Working Group on further Commitments for Annex I Parties under the Kyoto Protocol
• AWG-LCA - Ad Hoc Working Group on Long-term Cooperative Action
• AYCC - Australian Youth Climate Coalition

B

• BAP - Bali Action Plan

C

• C&C - Contraction & Convergence, a global CO₂ emissions management model promoted by the Global Commons Institute
• CAIT - The World Resources Institute's Climate Data Explorer archive ^[3]
• CAPP - Climate Action Pacific Partnership ^[4]
  • CAPP II - Climate Action Pacific Partnership (CAPP) Conference II – 2018
  • CAPP III - Third meeting of the Climate Action Pacific Partnership Conference (29-30 April 2019)
• CCA - Climate Change Agreement (UK)
• CCAFS - Climate Change, Agriculture and Food Security Research Program ^[5]
• CCAF - Climate Change Action Fund (Australia)
• CCC - Committee on Climate Change (UK)
• CCCEP - Centre for Climate Change Economics and Policy
• CCCR - Canada's Changing Climate Report
• CCCS - Centre for Climate Change Studies, University of Dar es Salaam ^[6]
• CCF - The Scottish Government's Climate Challenge Fund
• CCIA - Climate Change in Australia
• CC:iNet - Climate Change Information Network ^[7]
• CCL - Climate Change Levy (UK)
• CCl₂F₂ - Dichlorodifluoromethane (greenhouse gas)
• CCLS - Cambridge Climate Lecture Series
• CCRA - Climate Change Risk Assessment ^[a]
• CCS - Carbon Capture and Storage
• CCSO - Climate Change Support Office, within the United States' Department of State. ^[9]
• CCUS - Carbon capture, utilization, and sequestration
• CDM - Clean Development Mechanism
• CDP - Organisation formerly known as the Carbon Disclosure Project
• CDR - Carbon dioxide removal
• CER - Certified Emission Reduction
• CFC - Chlorofluorocarbon
• CFRF - Climate Financial Risk Forum (UK)
• CF₄ - Carbon tetrafluoride or tetrafluoromethane (greenhouse gas)
• CGE - Consultative Group of Experts ^[10]
• CHClF₂ - Chlorodifluoromethane (greenhouse gas)
• CH₄ - Methane
• CINC - Interdepartmental Committee of Climate Negotiators
• CLP - The Carbon Literacy Project (CLP)
• CMA - Meeting of the Parties to the Paris Agreement
  • CMA1 - First meeting of the Parties to the Paris Agreement (7-18 November 2016)
    • CMA1.2 - The second part of the first session of the Conference of the meeting of the Parties to the Paris Agreement (6-17 November 2017)
    • CMA1.3 - The third part of the first session of the Conference of the meeting of the Parties to the Paris Agreement (2-14 December 2018)
  • CMA2 - Second meeting of the Parties to the Paris Agreement (2–13 December 2019)
  • CMA3 - Third meeting of the Parties to the Paris Agreement (postponed to 1–12 December 2021)
• CMIP - Coupled Model Intercomparison Project
  • CMIP5 - Coupled Model Intercomparison Project, Phase 5 ^[11]
• CMP - Conference of the Parties Serving as the Meeting of Parties to the Kyoto Protocol
  • CMP9 - 9th meeting of the Parties to the Kyoto Protocol (11-23 November 2013)
  • CMP10 - 10th meeting of the Parties to the Kyoto Protocol (1-12 December 2014)
  • CMP11 - 11th meeting of the Parties to the Kyoto Protocol (30 November-12 December 2015)
  • CMP12 - 12th meeting of the Parties to the Kyoto Protocol (7-18 November 2016)
  • CMP13 - 13th meeting of the Parties to the Kyoto Protocol (6-17 November 2017)
  • CMP14 - 14th meeting of the Parties to the Kyoto Protocol (2-15 December 2018)
  • CMP15 - 15th meeting of the Parties to the Kyoto Protocol (2–13 December 2019)
  • CMP16 - 16th meeting of the Parties to the Kyoto Protocol (postponed to 1–12 December 2021)
• CNZ - Carbon Net Zero ^[12]
• CO₂ - Carbon dioxide
• CO₂-e - Carbon dioxide equivalent, also CO₂-eq ^[13]
• CoM - Covenant of Mayors for Climate and Energy (Europe) ^[14]
• COP - Conference of the Parties [to the UNFCCC]
  • COP1 - First UNFCCC Conference of the Parties (28 March to 7 April 1995)
  • COP2 - Second UNFCCC Conference of the Parties (8-18 July 1996)
  • COP3 - Third UNFCCC Conference of the Parties (1-10 December 1997) ^[15]
  • COP4 - Fourth UNFCCC Conference of the Parties (2-14 November 1998)
  • COP5 - Fifth UNFCCC Conference of the Parties (25 October to 5 November 1999)
  • COP6 - Sixth UNFCCC Conference of the Parties (13–25 November 2000)
  • COP6-bis - Resumed Session of COP6 (16-27 July 2001) ^[16]
  • COP7 - Seventh UNFCCC Conference of the Parties (29 October - 10 November 2001)
  • COP8 - Eighth UNFCCC Conference of the Parties (23 October - 1 November 2002)
  • COP9 - Ninth UNFCCC Conference of the Parties (1-12 December 2003)
  • COP10 - Tenth UNFCCC Conference of the Parties (6-14 December 2004)
  • COP11 - Eleventh UNFCCC Conference of the Parties (28 November - 9 December 2005)
  • COP12 - Twelfth UNFCCC Conference of the Parties (6-17 November 2006)
  • COP13 - 13th UNFCCC Conference of the Parties (3-15 December 2007)
  • COP14 - 14th UNFCCC Conference of the Parties (1-12 December 2008)
  • COP15 - 15th UNFCCC Conference of the Parties (7-18 December 2009)
  • COP16 - 16th UNFCCC Conference of the Parties (29 November - 10 December 2010)
  • COP17 - 17th UNFCCC Conference of the Parties (28 November - 11 December 2011)
  • COP18 - 18th UNFCCC Conference of the Parties (26 November - 6 December 2012)
  • COP19 - 19th UNFCCC Conference of the Parties (11-23 November 2013)
  • COP20 - 20th UNFCCC Conference of the Parties (1-12 December 2014)
  • COP21 - 21st UNFCCC Conference of the Parties (30 November-12 December 2015)
  • COP22 - 22nd UNFCCC Conference of the Parties (7-18 November 2016)
  • COP23 - 23rd UNFCCC Conference of the Parties (6-17 November 2017)
  • COP24 - 24th UNFCCC Conference of the Parties (2-15 December 2018)
  • COP25 - 25th UNFCCC Conference of the Parties (2-13 December 2019)
  • COP26 - 26th UNFCCC Conference of the Parties (1-12 November 2021)
  • COP27 - 27th UNFCCC Conference of the Parties (6-18 November 2022)
  • COP28 - 28th UNFCCC Conference of the Parties (30 November - 13 December 2023), held in the United Arab Emirates ^[17]
  • COP29 - 29th UNFCCC Conference of the Parties (11-22 November 2024), held in Baku
  • COP30 - 2025 UNFCCC Conference of the Parties (10-21 November 2025), ^[18] to take place in Belém, Brazil. ^[19]
  • COP31 - anticipated 2026 UNFCCC Conference of the Parties
• CORSIA - Carbon Offsetting and Reduction Scheme for International Aviation
• CPA - Carbon Pricing Act (Singapore)
• CPRS - Carbon Pollution Reduction Scheme (Australia)
• CRC - CRC Energy Efficiency Scheme, formerly Carbon Reduction Commitment (UK)
• CREWS - Climate Risk and Early Warning Systems ^[20]
• CRU - Climatic Research Unit at the University of East Anglia
• CRU TS - Climatic Research Unit Time Series datasets ^[21]
• CSA - Climate-Smart Agriculture
• CVF - Climate Vulnerable Forum

D

• DECC - Department of Energy and Climate Change (UK), now Department for Business, Energy and Industrial Strategy

E

• ECI - Environmental Change Institute at the University of Oxford
• EPR - Extended Producer Responsibility
• ETC - Energy Transition Council ^[18]
• ETS - Emissions Trading System
• ETSWAP - Emissions Trading Scheme Workflow Automation Project operated by the UK's Environment Agency

F

• FAR - First Assessment Report of the IPCC (1990)
• F-gas - Fluorinated gas
• FICER - Fund for Innovative Climate and Energy Research
• FOLU - Forestry and other land use
• FFF - Fridays for Future

G

• GCF - Green Climate Fund
• GCoM - Global Covenant of Mayors for Climate and Energy ^[14]
• GHG - Greenhouse gas
• GST - Global Stocktake ^[22]
• GtC - Gigatonnes of carbon
• GWP - Global warming potential

H

• HadCM3 - Hadley Centre Coupled Model, version 3
• HadGEM - Hadley Centre Global Environmental Model
  • HadGEM1 -
• HCFC - Hydrochlorofluorocarbon
• HFC - Hydrofluorocarbon

I

• ICLEI - International Council for Local Environmental Initiatives
• IKI - International Climate Initiative (German : Internationalen Klimaschutzinitiative), ^[23] a German Federal Government initiative ^[24]
• IPCC - Intergovernmental Panel on Climate Change
  • IPCC-50 - the IPCC's 50th session (2019)
• IPCC-NGGIP - IPCC National Greenhouse Gas Inventories Programme
• ISO 1406x Series - ISO standards for climate change mitigation
• ISO 14090:2019 - ISO standard for adaptation to climate change — Principles, requirements and guidelines
• ISO/DIS 14091 - Adaptation to climate change — Guidelines on vulnerability, impacts and risk assessment
• ISO/TS 14092 - Adaptation to climate change — Requirements and guidance on adaptation planning for local governments and communities

J

• JI - Joint Implementation

K

• KLD - Ministry of Climate and Environment (Klima- og miljødepartementet), Norway ^[25]

L

• LCDI - Low Carbon Development Indonesia ^[26]
• LDCF - Least Developed Countries Fund ^[27]
• LECBP - Low Emission Capacity Building Programme ^[28]
• LEDS - Low-Emission Development Strategies
• LSCE - Laboratoire des sciences du climat et de l'environnement, Gif-sur-Yvette, France
• LULUCF - Land use, land-use change, and forestry

M

• MCC - Mercator Research Institute on Global Commons and Climate Change, Berlin
• MPGCA - Marrakech Partnership for Global Climate Action
• MoCC - Ministry of Climate Change (Pakistan)
• MoEFCC - Ministry of Environment, Forest and Climate Change (India)
• MOP1 - 1st Meeting of the Parties to the Kyoto Protocol (28 November - 9 December 2005)
• MOP2 - 2nd Meeting of the Parties to the Kyoto Protocol (6-17 November 2006)
• MOP3 - 3rd Meeting of the Parties to the Kyoto Protocol (3-15 December 2007)
• MOP4 - 4th Meeting of the Parties to the Kyoto Protocol (1-12 December 2008)
• MOP5 - 5th Meeting of the Parties to the Kyoto Protocol (7-18 December 2009)
• MRF - Materials Recovery Facility
• MWE/CCD - Climate Change Department of the Ministry of Water and Environment (Uganda)

N

• NAMA - Nationally Appropriate Mitigation Actions
• NAPA - National Adaptation Programme of Action
• NAZCA - Non-state Actor Zone for Climate Action
• NC - National Communication (under the Paris Agreement) ^[29]
• NCQG - New Collective Quantified Goal: see 2024 United Nations Climate Change Conference
• NDC - Nationally Determined Contributions
• NECIA - Northeast Climate Impacts Assessment (USA) ^[30]
• N₂O - Nitrous Oxide
• NRSP - National Reports Submission Portal ^[29]

O

• O₃ - Ozone

P

• PATPA - Partnership on Transparency in the Paris Agreement
• P-CAN - Place-based Climate Action Networks, a UK-based partnership between university researchers and the public, private and third sectors in tackling climate change, aiming to accelerate and sustain the transition to a low-carbon, climate-resilient society through the creation of local climate commissions. ^[31]
• PCD - Petersberg Climate Dialogue
  • PCD X - Petersberg Climate Dialogue 10 (13-14 May 2019) ^[32]
  • PCD XI - Petersberg Climate Dialogue (27-28 April 2020)
• PFC - Perfluorocarbon
• PIK - Potsdam Institute for Climate Impact Research (German : Potsdam-Institut für Klimafolgenforschung)

S

• SAR - Second Assessment Report of the IPCC (1995)
• SB 52 - Fifty-second session of the Subsidiary Body for Scientific and Technological Advice (SBSTA 52) and the fifty-second session of the Subsidiary Body for Implementation (SBI 52) (postponed to 2021) ^[33]
• SB 56 - the Bonn Climate Change Conference, 56th session of the subsidiary bodies, held on 6 to 16 June 2022 ^[34]
• SBI - Subsidiary Body for Implementation
  • SBI 46 - Forth-sixth session of the Subsidiary Body for Implementation (8-18 May 2017)
  • SBI 47 - Forty-seventh session of the Subsidiary Body for Implementation (6-15 November 2017)
  • SBI 52 - Fifty-second session of the Subsidiary Body for Implementation (postponed to 2021) ^[33]
• SBSTA - Subsidiary Body for Scientific and Technological Advice
• SBTi - Science Based Targets initiative ^[b]
• SCCF - Special Climate Change Fund ^[27]
• SDA - Sectoral Decarbonization Approach
• SDGs - Sustainable Development Goals
• SECR - Streamlined Energy and Carbon Reporting framework (UK)
• SF₆ - Sulfur hexafluoride
• SRCCL - Special Report on Climate Change and Land of the IPCC
• SRES - Special Report on Emissions Scenarios of the IPCC
• SR15 - IPCC's Special Report on Global Warming of 1.5 °C
• SSP - Shared Socioeconomic Pathway

T

• TACC - Territorial Approach to Climate Change
• TAR - Third Assessment Report of the IPCC (2001)
• TCCC - Tarawa Climate Change Conference
• TCFD - Task Force on Climate-related Financial Disclosures ^[36]
• tCO2 - Tonnes of carbon dioxide equivalent
• TD - Talanoa Dialogue
• TFI - Task Force on National Greenhouse Gas Inventories ^[37]

U

• UKCIP - Multi-disciplinary team formerly known as the UK Climate Impacts Programme, based at the Environmental Change Institute at the University of Oxford
• UKCP - UK Climate Projections ^[38]
  • UKCP09 - UK Climate Projections 2009
  • UKCP18 - UK Climate Projections 2018 ^[39]
• UKHACC - UK Health Alliance on Climate Change
• UN CC:Learn - One UN Climate Change Learning Partnership
• UNEP - United Nations Environment Programme
• UNFCCC - United Nations Framework Convention on Climate Change
• USCAP - U.S. Climate Action Partnership

W

• WCAS - World Climate Action Summit, held on 1–2 December 2023, during the COP28 United Nations Climate Change Conference. ^[40]
• WCI - Western Climate Initiative
• WCRP - World Climate Research Programme
• WGI - Working Group I of the IPCC, which assesses the physical science of climate change
• WGII - Working Group II of the IPCC, which assesses the vulnerability of socio-economic and natural systems to climate change
• WGIII - Working Group III of the IPCC, which "focuses on climate change mitigation, assessing methods for reducing greenhouse gas emissions, and removing greenhouse gases from the atmosphere".
• WIM - Warsaw International Mechanism for Loss and Damage associated with Climate Change Impacts ^[41]
• WMO - World Meteorological Organization
• WRI - World Resources Institute

Numerical

• 4CMR - Former Cambridge Centre for Climate Change Mitigation Research

Notes

1. Under the 2008 Climate Change Act the UK Government must publish a UK-wide Climate Change Risk Assessment (CCRA) every five years. ^[8]
2. A target is "science-based" if it is in line with the scale of reductions needed to keep the global temperature increase below 2°C above pre-industrial temperatures. ^[35]

References

1. Climate Dictionary, Ad Hoc Working Group on the Paris Agreement
2. IPCC, AR5 Synthesis Report: Climate Change 2014
3. WRI, CAIT Climate Data Explorer, accessed 6 May 2020
4. COP23, What is the Climate Action Pacific Partnership?, accessed 14 July 2020
5. Research Program on Climate Change, Agriculture and Food Security, accessed 9 August 2020
6. Centre for Climate Change Studies, University of Dar es Salaam
7. Climate Change Information Network, Contributing to CC:iNet - A quick-start guide
8. Climate Change Committee (2017), Introduction to the CCRA, accessed 11 November 2022
9. Biden, J., Executive Order 14027—Establishment of the Climate Change Support Office, published on 7 May 2021, accessed on 12 March 2025
10. Secretariat of the United Nations Framework Convention on Climate Change, Updated work plan of the Consultative Group of Experts for 2020, accessed 15 August 2020
11. Lawrence Livermore National Laboratory, CMIP5 - Coupled Model Intercomparison Project Phase 5 - Overview, accessed 9 August 2020
12. Crown Commercial Service, Carbon net zero funding and grants, updated as of 5 January 2023, accessed 17 January 2023
13. Statistical Office of the European Union (Eurostat), Glossary: Carbon dioxide equivalent, updated 9 March 2017, accessed 10 August 2020
14. European Commission, Covenant of Mayors, EU Science Hub, published 8 July 2019, accessed 10 October 2020
15. Official Web Site of the Third Conference of the Parties, accessed 9 August 2020
16. Sixth Conference of the Parties to the UN Framework Convention on Climate Change - Resumed Session, accessed 27 May 2020
17. Time Out Dubai, COP 28 climate change event to take place at Expo City Dubai, published 23 June 2022, accessed 29 October 2022
18. UN Climate Change Conference UK 2021, Focus of Energy Transition Council (ETC), published 4 November 2021, accessed 29 October 2022
19. Reuters, Brazil says UN confirmed Amazonian city of Belem as COP30 host, published 26 May 2023, accessed 8 August 2023
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21. University of East Anglia, High-resolution gridded datasets (and derived products), accessed 20 May 2020
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25. Klima- og miljødepartementet
26. Pangestu, M., Insight: New development pathway for Indonesia, Jakarta Post, 24 September 2018, accessed 23 July 2020
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28. UNDP (2011), Low Emission Capacity Building Programme
29. United Nations Framework Convention on Climate Change, National Communication submissions from Non-Annex I Parties, accessed 8 November 2020
30. Union of Concerned Scientists, Confronting Climate Change in the U.S. Northeast: Executive Summary
31. Queen's University Belfast, Queen's Academic joins £3.5M Research Network to support UK transition to a low-carbon economy, published 1 February 2019, accessed 11 May 2020
32. Bundesministerium für Umwelt, Naturschutz und nukleare Sicherheit, Petersberg Climate Dialogue X: Agenda
33. United Nations Climate Change Secretariat, Information regarding SB 52, issued 22 June 2020, accessed 20 July 2020
34. About the Bonn Climate Change Conference, accessed 10 June 2022
35. Rickard, G., What exactly is a science-based target?, Carbon Trust, published 17 September 2019, accessed 4 August 2021
36. Task Force on Climate-related Financial Disclosures
37. IPCC, Task Force on National Greenhouse Gas Inventories, accessed 16 May 2020
38. Met Office, UK Climate Projections (UKCP)
39. Met Office, About UKCP18, accessed 29 May 2020
40. United Nations Climate Change, World Climate Action Summit and high-level segment at COP 28, accessed 2 December 2023
41. United Nations, Warsaw International Mechanism for Loss and Damage associated with Climate Change Impacts (WIM), accessed 21 November 2022