Japan's largest solar power plant has been built on reclaimed land jutting into a bay -- a creative solution for a crowded country.
Gov. Pat Quinn says growing piles of waste from tar-sands oil refining constitute an emergency, but owners of the piles successfully argued against immediate rules.
The European Union is set to scrap rules that restrict the import of especially dirty, climate-changing fuels.
Transportation safety boards in the two countries issued urgent calls on Thursday for new rules to make oil-hauling trains less dangerous.
When Gov. Jerry Brown declared a drought, he quietly suspended parts of one of the state's landmark laws, the California Environmental Quality Act.
Yes, definitely, say the state's cleantech leaders. They're joining enviros to push for more renewables instead of new natural-gas plants.
Sure, it's still better than the rest of the world, but activists and scientists had been hoping for stronger goals on CO2 emissions and renewable energy.
It would be the first commercial oil shale project in the U.S., and environmentalists hope to stop it by fighting a state water permit.
A nuclear power plant in Ohio leaked radioactive tritium into groundwater, but now the leak's been patched up and there's no sign that Lake Erie was contaminated.