• “Clean coal” could be economically viable by 2030, says report.

• E.U. lawmakers may back off plans to cut CO2 emissions from cars.

All donations matched! Reader support helps sustain our work. Donate today to keep our climate news free.

• Tide power pushes forward.

• EPA chief lied to Congress, says Sen. Boxer.

Grist thanks its sponsors. Become one.

To support our nonprofit environmental journalism, please consider disabling your ad-blocker to allow ads on Grist. Here's How

• Zookeeper of famous polar bear Knut has died.