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Sandra Postel: Repairing the Water Cycle

El Niño has been dropping much-needed rain this winter on a parched American West. But it’s making little difference to the greater water scarcity issues the US as well as the rest of the world is increasingly facing.

Water Risks are Growing; Here’s a Tool to Help Us Prepare

Last week, a team of colleagues and I released a new tool to help planners and policy-makers better understand the geography and nature of water risks around the globe.

Dam on Ethiopia’s Omo River Causing Hunger and Conflict

In the lower Omo River Valley of southern Ethiopia, a spreading humanitarian emergency that threatens to spawn conflicts in the region is largely being met with silence...

Dam Ideology

When it comes to water, concrete trumps common sense.

Groundbreaking State Law Tested in Colorado Headwaters Stream

The infamous use-it-or lose-it rule is arguably the biggest barrier to water conservation and river-flow restoration in the western United States.

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

The stage was set by decades of neglect and the near-absence of any requirements that mining companies take responsibility for preventing harm to people and aquatic life after they close their mines.

Solar Desalination Could be a Game Changer for California Farms

Let’s be clear from the outset: I’m no fan of conventional desalination.

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

Imagine if your bank statement arrived each month and told you how much money you had withdrawn and deposited, but told you nothing about how much money you had at the beginning or end of the month.

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.

Solar Electricity Buybacks May Reduce Groundwater Depletion in India

It’s hard to find solutions that confront water depletion, climate change and rural poverty all at once, but an innovative scheme being piloted in the Indian state of Gujarat does just that.
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