Archive | June, 2018

Standing guard around trees to increase stormwater infiltration

Trees can pack a big punch when it comes to reducing stormwater. But Robert Elliott, former Columbia University (New York) graduate student and co-founder of Get Urban Leaf (New York), believes there is untapped potential for using trees to manage runoff in cities. He led a university study that provides urban planners with information that […]

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Storms as destructive as Hurricane Harvey projected to happen more frequently

When Hurricane Harvey inundated eastern Texas late last August, the eye of the storm loitered over land for nearly a week rather than dispersing as it moved farther from the ocean, as most hurricanes do. The result was a stronger, more destructive storm, which dropped a record-breaking 127 cm (50 in.) of rain and directly […]

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Steel chips purge nearly 99% of E. coli bacteria from runoff in lab tests

In the watershed of the Big Sioux River, a 675-km-long (420-mi-long) tributary of the Mississippi, the South Dakota Department of Environment and Natural Resources reports that nearly all streams exceed regulatory limits for Escherichia coli bacteria. After a summer storm, runoff drives E. coli levels in some streams to reach as high as 2000 colony-forming […]

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