US calls on EU to abandon 'lousy' carbon tax on airlines

US Transportation Secretary Ray LaHood on Wednesday called on the European Union to abandon its controversial carbon tax on airlines, saying the policy aimed at combatting global warming was "lousy."

Vatican, biotech firm host adult stem cell meeting

(AP) -- The Vatican has entered into an unusual partnership with a small U.S. biotech company to promote using adult stem cells for treating disease, rather than focusing research on embryonic stem cells.

Obama pushes nuclear energy to boost climate bill

(AP) -- President Barack Obama is endorsing nuclear energy like never before, trying to win over Republicans and moderate Democrats on climate and energy legislation.

US more optimistic about climate deal after talks

(AP) -- The top U.S. negotiator on climate change said Tuesday that he is slightly more optimistic about striking a new international agreement to curb global warming after a two-day meeting with the world's largest emitters ...

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