regime shift
21Climate change and ecosystems — This article is about climate change and ecosystems. Environment portal …
22Climate — For other uses, see Climate (disambiguation). Worldwide Climate Classifications Climate encompasses the statistics of temperature …
23Kyoto Protocol — Participation in the Kyoto Protocol, as of December 2010, Green = Countries that have signed and ratified the treaty              (Annex I II countries in dark green) Grey =… …
24Carbon offset — Part of a series on Green economics Concepts …
25Attribution of recent climate change — Further information: Global warming, Climate change, and Climate change denial Attribution of recent climate change is the effort to scientifically ascertain mechanisms responsible for recent changes observed in the Earth s climate …
26El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
27Climate change and agriculture — are interrelated processes, both of which take place on a global scale.[1] Global warming is projected to have significant impacts on conditions affecting agriculture, including temperature, carbon dioxide, glacial run off, precipitation and the… …
28Scientific opinion on climate change — This article is about scientific opinion on climate change. For public perception and controversy about the scientific consensus, see Public opinion on climate change and Global warming controversy. For opinions of individual dissenting… …
29Temperature record — For extreme records instead of records as a set of data, see Temperature extremes For instrument derived temperature records, see Instrumental temperature record …
30IPCC Fourth Assessment Report — IPCC Assessment reports: First (1990) 1992 sup. Second (1995) Third (2001) Fourth (2007) …
