Mostly harmless yet terrifying
Sony have created a methanol driven fuel cell, a combination of lithium-polymer battery, backup battery and control circuit, small enough to fit in the palm of your hand.
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The BBC's environment correspondent David Shukman is on the remote Pacific island of Midway to report on the threat of plastic rubbish drifting in the ocean. Plastic debris collects around the island, scene of a seminal World War 2 battle, with serious consequences for its wildlife.
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