Figure 2: Location and consistency of observed changes with warming
Locations of significant changes in physical systems (snow, ice and frozen ground as well as hydrology and coastal processes) and biological systems (terrestrial, marine and freshwater biological systems), and linear trends of surface air temperature (HadCRUT3; ref. 35) between 1970 and 2004. Regions are based on data in refs 36 and 37. White areas do not contain sufficient climate data to estimate a trend. Note that there are overlapping symbols in some locations; Africa includes parts of the Middle East.