Learn more about sea level rise


Fast and Getting Faster: The Verdict on Sea Level Rise from the Latest National Climate Assessment

, climate scientist

Sea level rose more rapidly during the 20th century than during any of the previous 27 centuries, and humans bear the lion’s share of the responsibility for that rise. That’s just one of the sobering takeaways from the U.S. Global Change Research Program’s Climate Science Special Report (CSSR), released today, but leaked to the New York Times in August. Billed as Volume 1 of the Fourth National Climate Assessment (NCA), the CSSR captures the state of sea level rise science and its implications for the coasts of our country.

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Sweet et al. 2017
NASA
Simran Paintlia for mycoast.org
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This is the extent of flooding from Hurricane Sandy in Cape May, NJ (left) vs. the area that would flood twice monthly by 2100 due to sea level rise (right)

This Is Your Planet on Sea Level Rise. Any Questions?

, climate scientist

There are moments when your own data stops you dead in your tracks. I had one of those moments a few months ago. Read more >

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The Native Village of Shishmaref, viewed from the northeast side of Sarichef Island. Photo: Eli Keene

Rising Seas Erode Homes and History in Alaska—Let’s Talk Relocation

Victoria Herrmann,

Climate change is amplified in the Arctic, and many coastal communities are talking relocation. The cost of relocation, often emphasized, is just a small part of the story–for these communities moving means losing a common history, a way of life and their identity. Read more >

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Photo: New Jersey National Guard

The National Flood Insurance Program is up for Reauthorization: Here’s What Congress Should Do

, lead economist and climate policy manager

The National Flood Insurance Program is up for reauthorization by the end of September and the clock is ticking for legislation to extend the program. With so many homeowners and small businesses depending on this vital program, will Congress take the necessary steps to reform and strengthen the program—especially in light of the growing risks of coastal and inland flooding?

Here’s a quick rundown of the latest bills and what they might mean for the future of the program. Read more >

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Rising sea levels are already a threat to coastal historic buildings and the communities they anchor in places like Maryland’s Chesapeake Bay. Photo: Photo: Octavio Abruto/iLCP

What is the Cost of One Meter of Sea Level Rise?

Sean Vitousek,

The opening line of our recent Scientific Reports article reads “Global climate change drives sea level rise, increasing the frequency of coastal flooding.” Some may read this as plain fact. Others may not. Read more >

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