coastal flooding


3 Questions Worth Answering in the Wake of Winter Storm Grayson

, senior analyst, Climate & Energy Program

Yesterday in Massachusetts we were asking ourselves questions that have rarely, if ever, needed asking.

What happens when half-frozen seawater suddenly floods onto roadways? Can something the consistency of a milkshake and 3 feet deep be plowed? There’s a large dumpster floating down the street… What depth of water is sufficient to do that? What happens if some of this water freezes in place before it retreats (as I write this, the temps have plummeted to 12 degrees F and dropping)? Will those cars now filled with seawater in the snow-emergency parking lot run again? What if the water freezes inside them over the weekend, can that punch out doors? Read more >

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Photo: Patrick Bloodgood/US Army

Superfund Sites and the Floods of Hurricane Harvey: Foreseeable or an “Act of God”?

, research scientist, Center for Science and Democracy

Superfund sites contain some of the most dangerous chemicals known to humankind. It has been confirmed that Superfund sites in the Houston area were submerged by the floodwaters of Hurricane Harvey. Does this mean these hazardous chemicals were swept away off of Superfund sites into neighboring communities where people live, play, and work? If so, who will be responsible for cleaning up such a disaster? Read more >

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New Interactive Map Highlights Effects of Sea Level Rise, Shows Areas of Chronic Flooding by Community

, climate scientist

A new interactive map tool lets you explore when and where chronic flooding–defined as 26 floods per year or more–will force communities to make hard choices. Here’s how to use it. Read more >

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How the Size of Your iPhone Relates to Sea Level Rise

, climate scientist

Got your phone handy? Over the last month, coastal residents from Hawaii to Rhode Island wielded their smartphones and snapped dozens of shocking photos at high tide showing neighborhoods, parking lots, and public parks underwater. Meanwhile, scientists have published a spate of sobering sea level rise studies. We spend hours cradling our phones in our hands…let’s put them to use for a moment (screens off!) to put the latest sea level rise science into perspective. Read more >

Dangendorf et al. 2017
The Global Sea Level Observing System
Sweet et al. 2017
Vitousek et al. 2017
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Photo: NASA

Matthew Is the Most Powerful Atlantic Hurricane in a Generation. Here’s What You Need to Know.

, climate scientist

This is a gravely serious storm. Many of today’s East Coast residents have never experienced a hurricane of this magnitude and power, nor much considered the risks. Now they have a matter of hours to prepare. Read more >

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