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A comment on The Godzilla of Solar Ovens. Parent comment

Re:The Godzilla of Solar Ovens by Frenchgeek on Thursday June 30, 2016 @05:56AM (#12007526)
Burn magnesium in carbon dioxyde captured from the air then electrolyse the magnesium oxyde to get useable magnesium back?
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Re:The Godzilla of Solar Ovens by adrianN on Thursday June 30, 2016 @07:29AM (#12007796)
Plant some trees, make charcoal?
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Re:The Godzilla of Solar Ovens by Frenchgeek on Thursday June 30, 2016 @07:52AM (#12007868)
A bit difficult to do if we're in a desert, I think...
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