5/17/2020 #kihei #impervious #paving #flooding

From Scientific American May 15, 2020:

Expanding Paved Areas Has an Outsize Effect on Urban Flooding

Researchers have finally been able to pinpoint just how much impervious surfaces exacerbate flood levels

Now a study published in March in Geophysical Research Letters has found that, on average across the U.S., every time a city expands roads, sidewalks or parking lots by one percentage point, the annual flood magnitude in nearby waterways increases by 3.3 percent.

Read the article here:

https://www.scientificamerican.com/article/expanding-paved-areas-has-an-outsize-effect-on-urban-flooding1/

 


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