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Geographer Christopher Burn explains why permafrost is thawing
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Amazon research that has withstood thieves and arsonists now faces its greatest challenge
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Scientists scale peaks and study plants to understand the impact of warming
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What mangroves give the world and why we can’t afford to lose them
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How the world’s 6.6 billion people threaten the health of the ecosystem
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The Coldest Place in the Universe
Physicists in Massachusetts come to grips with the lowest possible temperature: absolute zero
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Making Your Holiday Tree Eco-Friendly
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