What the world might look like in 2100, if the temperature rises ...
1°C
Glaciers and Arctic sea ice continue long term declines. Very slow, but irreversible, melting of major ice sheets may begin
2°C
Arctic Ocean likely to be ice free during the summer months
3°C
Polar sheets shed massive volumes of ice causing the sea to rise sharply
4°C
Antarctic ice sheet collapses. Near-complete loss of the Greenland ice sheet causing an eventual sea level rise of up to 7metres
Source: Intergovernmental Panel on Climate Change; Research: Karl Mathiesen