The impacts of climate change are already being felt. Average global temperatures have risen every decade since the 1970s. Extreme weather events – droughts, floods and major typhoons – are becoming more common and destroying farmlands. China's already stressed water resources are drying out even further. Glaciers, permafrost and sea ice are disappearing, while sea levels are rising and coral reefs dying. The impacts of climate change are already responsible for killing hundreds of thousands of people every year, and damaging ecosystems