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Hongjie Dai and colleagues have developed a cheap, emissions-free device that uses a 1.5-volt battery to split water into hydrogen and oxygen. The hydrogen gas could be used to power fuel cells in zer...
A new foam material could be the first good reusable method to recover spilled oil, and would be much better for the environment:
A new material can absorb up to 90 times its own weight in spill...
When people say "the climate has changed before," these are the kinds of changes they're talking about.
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