Latest Greenhouse gas emissions by the United States Stories
A report by researchers at Columbia University's Mailman School of Public Health provides an expanded review of six new air quality regulations proposed or recently adopted by the U.S. Environmental Protection Agency's (EPA).
Canada became the first country to declare it was formally exiting the Kyoto protocol on Monday, making itself a target of criticism from China and other countries.
What will a day in the life of a Californian be like in 40 years?
- The governor of a province or people.