The international lender says it won't support coal-fired power plants in most circumstances, opting instead to fund cleaner energy.
People who live alone tend to live more sustainably, which is good news for cities.
First the European Union banned three neonicotinoid pesticides, and now it's restricting use of a nerve agent that's toxic to bees. If only the U.S. were so concerned about pollinators.
Russia blocked proposals from America, New Zealand, and others to protect more than 1.5 million square miles of Antarctic ocean areas from fishing.
Midwesterners would see the biggest price increases if Keystone XL is built and Canadian oil starts bypassing American markets and heading abroad.
Carbon pricing is the big political topic down under right now, in the run-up to a federal election to be held later this year.
In a trial that began this week, the cities are trying to force paint companies to clean up hazardous lead paint in 5 million homes.
The country plans to quadruple its solar generation capacity by 2015, taking advantage of cheap solar panel prices caused by a supply glut.
Leaving mangroves, coral reefs, and other shoreline habitats intact around the U.S. could help protect more than a million people, researchers say.