National Geographic: Just a few decades remain to halt global warming and head off its most catastrophic effects, says a new United Nations report that offers a sweeping menu of climate change fixes that would require global cooperation to implement.
The Intergovernmental Panel on Climate Change (IPCC) mitigation report, released Sunday in Berlin, explores some 1,200 scenarios to avert the worsening effects of global warming by 2100. The proposals range from planting more trees to relying much more on nuclear power....