BBC News Science & Environment

18 February 2011 Last updated at 18:09 ET

Obama adviser's climate concernsJohn Holdren

President Obama's science adviser says he is relishing the idea of US Congressional hearings to assess the science of climate change.

Thermogram of bats (Thomas Kunz)Radar trick tracks bats and bees

A burgeoning technique is turning radar technology onto the task of tracking bats, birds and insects, researchers tell an American science conference.

Earthcare (Esa)Euro space laser gets go ahead

Europe is to press ahead with its Earthcare space laser mission, despite a 30% rise in the probable cost of the venture.

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