Fast growing algae as a biofuel source does not displace crops, and requires only sunlight to withdraw carbon dioxide from the air.
http://www.guardian.co.uk/environment/2009/jun/28/china-algae-carbon-capture-plan
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Fast growing algae as a biofuel source does not displace crops, and requires only sunlight to withdraw carbon dioxide from the air.
http://www.guardian.co.uk/environment/2009/jun/28/china-algae-carbon-capture-plan