I just worked out that the world energy usage is about 5 tons per year - don't know if it is correct, but it seems more than I thought!
I worked it out using E=mc2, and the total world energy usage as on wikipedia. 5 tons seems a lot!
__________________ Team GasMisers5 - #1 for first three rounds of the original GS Fuel Economy Challenge
Miles displaced by e-bike since 1 Jan 2008: 62.6 (0 kWh used)
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