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Tipping point: is the Amazon forever changed? - 0 views
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Climate change: we are like slave-owners - 1 views
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People need food. What else is new? - 1 views
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Thorium, possibly the biggest energy breakthrough since fire - 1 views
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Jeremy Rifkin: The 'Democratization Of Energy' Will Change Everything - 1 views
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Great Lakes - Disaster and Opportunity - 4 views
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