Climate change acronyms

The Intergovernmental Panel on Climate Change (IPCC) with the United Nations Framework Convention on Climate Change (UNFCCC) use tens of acronyms and initialisms in documents relating to climate change policy.

• AAU - Assigned amount unit
• AMO - Atlantic multidecadal oscillation
• AO - Arctic oscillation

• CDM – Clean Development Mechanism is an arrangement under the Kyoto Protocol allowing industrialised countries with a greenhouse gas reduction commitment (called Annex 1 countries) to invest in projects that reduce emissions in developing countries as an alternative to more expensive emission reductions in their own countries.
• CDR - Carbon dioxide removal
• CER – Certified emission reductions
• CFC - Chlorofluorocarbon
• CF₄ - Tetrafluoromethane
• CH₄ - Methane
• COP - Conference of the Parties
• CO₂ - Carbon dioxide
• C₂F₆ - Hexafluoroethane

• ENSO - El Niño-Southern Oscillation

• GCM - General Circulation Model or global climate model
• GFDL - Geophysical Fluid Dynamics Laboratory
• GHG - Greenhouse gas
• GWP - Global-warming potential

• HCFC - Hydrochlorofluorocarbon
• HFC - Hydrofluorocarbon
• H₂O - Water vapor

• IPO - Interdecadal Pacific Oscillation

• NAPA – National Adaptation Programme of Action.
• NCAR - National Center for Atmospheric Research
• NF₃ - Nitrogen trifluoride
• N₂0 - Nitrous oxide

• OHC - Ocean heat content
• O₃ - (Tropospheric) Ozone

• PDO - Pacific decadal oscillation

• REDD – Reducing Emissions from Deforestation and forest Degradation mechanisms use market/financial incentives to reduce the emission of greenhouse gases from deforestation and forest degradation.

• SST - Sea surface temperature
• SF₆ - Sulfur hexafluoride

• TEWI - Total equivalent warming impact

• UHI - Urban heat island

• WMO - World Meteorological Organization

• Glossary of climate change
• LOWERN

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