Indian power cuts reflect ongoing grid problems
India has been struck by massive power cuts on two successive days because it simply does not generate enough electricity
Ex-sceptic says humans to blame for global warming
Physicist Richard Muller now says he is convinced that humans are causing climate change, but nobody is convinced by his analysis
Tiny carbon-stealing organisms bloom in the Black Sea
Microscopic plankton in the Black Sea move carbon from the air into the sediment, speeding up the carbon cycle
The emotions of the Olympics, in real time
A new data visualisation reveals trends in the way people are responding to the world's biggest sporting event
Ye Shiwen's Olympic swim gold 'not impossible'
The Chinese swimming prodigy's world record in the women's 400 metres Olympic individual medley may merely be exceptional
Prostate cancer blood test causes controversy
A US health agency advises against routine prostate cancer screening while a new study claims it has made aggressive forms of the disease less common
'We need to maintain a human presence under the sea'
Aquanaut Sylvia Earle, co-leader of the final mission to the world's only undersea lab, says the oceans need protecting more than ever - don't pull funding
Modern culture began in South Africa 44,000 years ago
The Later Stone Age technology in South Africa appeared 20,000 years earlier than thought, bringing it into line with a similar transition in Europe
Sinking the Titanic 'women and children first' myth
Forget "women and children first" - it might have worked on the Titanic, but it's usually every man for himself, says Mikael Elinder
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