Category Archive: Water & Energy

Oct 12

Dams: They Cut Both Ways

Dams can benefit society—and harm river ecosystems. Listen up for why it’s important to balance the good with the bad: > Dams can create a reservoir to hold water, protect areas from floods, or generate clean electricity. All good, right? But wait, there’s more: A dam also physically blocks migrating fish and changes the overall …

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Permanent link to this article: http://www.currentcast.org/water-and-energy/dams-the-good-and-the-bad/

Jun 16

When Cutting Dam Losses Just Makes Cents

Sometimes removing a dam is a better “fix” than repair. Listen up: Let’s start with the good news. Thousands of dams across the U.S. harness rivers to reap a variety of goods and services. And here’s the economic but: As those dams age, their owners can face significant repair or maintenance costs. Brian Graber of …

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Permanent link to this article: http://www.currentcast.org/water-and-energy/when-cutting-dam-losses-just-makes-cents/

Jun 15

Water Power: The Good, the Bad, and the Bubbly

Hydropower is one of the cleaner energy options, but that doesn’t make it perfect. Wade into this: Rushing, cascading water doesn’t just power epic rafting trips—fast-flowing water also creates hydropower. It goes something like this: A dam is built in a river, holding back the water to form a reservoir. When released, the force of …

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Permanent link to this article: http://www.currentcast.org/water-and-energy/hydroelectric-power/

Jun 07

Less Is Still More When It Comes to Biofuel

Crop-based biofuels burn cleaner than gasoline—but there’s a hitch. Listen up for the water-guzzling scoop: Everything you’ve heard is true: Compared with fossil fuels, burning biofuels releases fewer greenhouse gases. But what you might not know is that producing the cleaner-burning fuel also requires a lot of water. Take corn-based ethanol, for example, which is …

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Permanent link to this article: http://www.currentcast.org/water-and-energy/the-water-footprint-of-biofuels/

May 26

Old Dams Die Hard

Deteriorating dam infrastructure is a “dam” shame. Listen up: Let’s face it: no dam lives forever. Many of the nation’s estimated 75,000 dams have been providing important services like hydropower or irrigation since the early 1900s—and their time for removal or serious repair has come. How do such sturdy structures crumble in the first place? …

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Permanent link to this article: http://www.currentcast.org/water-and-energy/environmental-impact-of-old-dams/

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