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Climate and Atmosphere
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Definition(s)

The long-term fluctuations in temperature, precipitation, wind, and all other aspects of the Earth's climate. External processes, such as solar-irradiance variations, variations of the Earth's orbital parameters (eccentricity, precession, and inclination), lithosphere motions, and volcanic activity, are factors in climatic variation. Internal variations of the climate system, e.g., changes in the abundance of greenhouse gases, also may produce fluctuations of sufficient magnitude and variability to explain observed climate change through the feedback processes interrelating the components of the climate system. (Source: GEMET/GSFC)
[...The] change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods. (Source: UNFCCC, Art 1)

In other languages

French
changement climatique
Russian
изменение климата
Spanish
cambio climático
Chinese, Simplified
气候改变
Arabic
التغير المناخي

Explore content

Multilateral environment agreements tagged with climate change

You can see below a list of multilateral environment agreements. Use the links on the right to view the content tagged with climate change. This includes official treaty texts, decisions, recommendations, and other related informational documents such as publications, annuals, meetings, documents or reports.
Basel Convention
Convention on Migratory Species
Stockholm Convention
Nagoya Protocol
Agreement on the Conservation of African-Eurasian Migratory Waterbirds
United Nations Framework Convention on Climate Change
Kyoto Protocol
United Nations Convention to Combat Desertification
Governing Council
Convention on the Transboundary Effects of Industrial Accidents
Agreement on the Conservation of Small Cetaceans of the Baltic and North Seas
Carpathian Convention
United Nations Environment Assembly

Multimedia

Ocean Acidification

Effectiveness and Compliance of Multilateral Environmental Agreements (LRTAP)