Environment

When rivers, or at least their remnants, return

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LA CIÉNEGA DE SANTA CLARA, MÉXICO— Alejandra Calvo crosses a barren stretch of desert in Sonora, México almost daily during certain times of the year. The route could easily disappear beneath blowing dust and when rain does fall here, it renders the road impassable. There are no birds or wildlife here, not even any visible plants. It wasn’t always like this: Until the 1960s, the Colorado River spread across this delta on its path to the Sea of Cortez. Originally from Chiapas, Calvo is a biologist who works for ProNatura Noroeste, a conservation group based in northwestern Mexico.

Environment

Looking for lessons along the Colorado River

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Over the next week, New Mexico Political Report will be reporting from…not New Mexico. Instead, we’ll be taking a closer look at the Colorado River. The Colorado delivers water to more than 36 million people in seven states and two countries. Its waters carved the Grand Canyon and, far more recently, allowed the growth of Sunbelt cities like Phoenix and Tucson. (No, neither is near the Colorado.

Clean Water Act

EPA’s waters and jobs, plus climate change and Cape Town’s dwindling water supplies

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This week, the U.S. Environmental Protection Agency announced that along with the U.S. Army Corps of Engineers, finalized the “Waters of the United States” applicability date. Last March, President Donald Trump directed the agencies to review the “Clean Water Rule” also known as the Waters of the U.S. Rule, which was finalized in 2015 as a way to clarify confusion over parts of the Clean Water Act. The rule applies to navigable waterways and their tributaries. Under the rule, a tributary doesn’t need to be a continuously flowing body of water. But it must have flowing water—marked by a bed, bank and high water mark—to warrant protection.