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Olduvai III: Catacylsm
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Sandra Postel: Repairing The Water Cycle

Sandra Postel: Repairing The Water Cycle It’s now a top priority for our species  Water, water, every where, And all the boards did shrink; Water, water, every where, Nor any drop to drink. The very deep did rot – Oh Christ! That ever this should be. ~ Samuel Taylor Coleridge El Niño has been dropping much-needed […]

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As the Gold King Spill Reminds Us, We All Live Downstream

As the Gold King Spill Reminds Us, We All Live Downstream The Animas River Between Silverton and Durango, Colorado, within 24 hours of the spill from Gold King Mine. Photo credit: Riverhugger/Creative Commons. Around this time last year, I was walking the banks of the Animas River in Durango, the southwestern Colorado town blindsided last […]

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With One-Third of Largest Aquifers Highly Stressed, It’s Time to Explore and Assess the Planet’s Groundwater

With One-Third of Largest Aquifers Highly Stressed, It’s Time to Explore and Assess the Planet’s Groundwater NASA’s twin-satellite mission known as GRACE has helped scientists estimate how much water is being depleted from the world’s major aquifers, but there is great uncertainty about how much water these aquifers hold. Image courtesy of NASA. Imagine if […]

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The “Sixth Extinction” Adds Urgency to Habitat and Climate Protection

The “Sixth Extinction” Adds Urgency to Habitat and Climate Protection It’s now unequivocal: the sixth great spasm of species extinctions has begun.   We – homo sapiens – are its cause. And only we can slow it down. Over the last century, the average rate of loss of vertebrate species — fish, amphibians, reptiles, birds and mammals – […]

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Olduvai IV: Courage
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Olduvai II: Exodus
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