The fundamental science is very well understood. The evidence that climate change is happening is abundant and clear. The difficult part is: what do we do next? More than ever, we need strong, cooperative and accountable leadership from politicians of all nations. Only then will we avoid the worst of climate change and adapt to the impacts we can’t halt.
The authors acknowledge the contributions of Wes Mountain (multimedia), Alicia Egan (editing) and Andrew King (model projection data).