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In Korea it's hydrogen from landfill gas for hydrogen vehicles and a commercial hydrogen fuel cell that powers 3000 homes (cost comparisons here).
In a slightly different vein - but a sign of the times none the less - Apple, Nike, PG&E and Exelon quit the US Chamber of Commerce over it's climate stance. And UK Prime Minister Gordon Brown has put a size on the low-carbon sector. It is now larger than defense and aerospace combined.
Clearly there's some business and government action at these levels. For the moral imperative, Simon Longstaff of the St James Ethics Centre documents the uncomfortable similarities between climate responses and slavery, as argued in the UK Parliament in 1806!
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