At-a-glance: Climate change - evidence and predictions
Warming world

Long-term high

Sea level rise

Thinning ice

Growing emissions

Warmer future

Long-term high
Scientists say average global temperatures have varied by less than one degree since the dawn of human civilisation, although they fluctuated much more before that. The IPCC predicts a global rise of between 1.4C and 5.8C by the year 2100.