This study is one of the few to break down the environmental impacts of individual self-selected diets.
The report outlines the ways in which global warming has already caused harmful extreme weather in the United States.
A new study shows that tropical forests emit more carbon than they consume, mostly due to human activities.
Lawsuits by states and advocacy groups are effectively blocking some of the most egregious attacks on environmental regulations.
Efforts at geoengineering to cool a warming planet are picking up steam.
Doing deals with the Russians to put a pipe under the North Sea gives Germany some flexibility in its post-nuclear future, but at what price?
In car-crazy Australia, soft measures are turning the tide in the hard battle to reduce the number of basically empty cars on the road.
Although lots of places in the United States sample bits and pieces of transportation management, Bellingham, Wash., shows what can happen by taking on the full program.