Extracting tar-sands oil from Canada would lead to "a significant increase in greenhouse gas emissions," says the U.S. EPA.
The Steelworkers union is worried about emissions, leaks, fires, and explosions at oil refineries, and is demanding safer working conditions.
By planting 30,000 trees, Melbourne, Australia, could lower its core temperature by 7 degrees. How cool is that?
Climate change is making Iceland taller and more volcanic, a new study finds.
NASA scientists tracked atmospheric currents for a year, and found increased air pollution was linked to stronger storms. Yipes.
The city will shame and fine residents for putting compostable food in the trash bin.
Bricks that grow themselves, plastic made of mushrooms ... the future is a weird and wonderful place.
The space agency is adapting technology used to test for life on Mars to help preserve it here on Earth.
The president wants to fast-track the Trans-Pacific Partnership and other trade deals. Republicans are down with that. Democrats and enviros are not.