Thomas Gibon

ABC — anything but coal

Policymakers, industry and government officials will have to invest US $2.5 trillion for electricity generation over the next 20 years. A new report presents the environmental costs and benefits linked to different renewable energy sources, and makes one thing abundantly clear: anything is better than coal.

A global challenge

Three climate researchers talk about the latest report from Intergovernmental panel on climate change (IPCC). In English, French and Italian.