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Can We Plant 20 Million Trees by 2020? The Math Says Yes

How much land will the \#TeamTrees plan require? A science prof roughs it to assess the feasibility.

Can We Plant 20 Million Trees by 2020? The Math Says Yes

How much land will the \#TeamTrees plan require? A science prof roughs it to assess the feasibility.

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What got the climate change ball rolling? Scientists say it started centuries ago...

Even if your drinking water gets a ‘passing grade,’ it may not be safe - PBS NewsHour

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