Sea Level Rise

Accelerated erosion

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There will always be beaches, but sea level rise will ensure that they will not be in the same place in the future. The beaches will still exist throughout this change, but many of the buildings may not. Efforts to save development, however do threaten beaches, such as shoreline armoring structures.

Although relative amounts of rise may seem very small, only a few millimeters per year, the cumulative effect of these small rises each year over a long period of time (100+ years) causes major problems. Accelerated rates of erosion are attributed to sea level rise and erosion causes large economic losses around the world each year due to the close proximity of buildings and critical infrastructure. This includes transportation systems, gas and oil lines as well as electricity lines and power plants.

Most developed coasts and beaches have buildings very close to the ocean leaving little room for the ever-expanding ocean. The future effects of sea level rise on coastal civilization over the entire world are of great concern. Over half of the world’s population lives within 100 km of the coast. Over the next 50 years, damage due to coastal development will be devastating, but if the rate of sea level rise increases, the results could be catastrophic. This issue threatens areas from New York City in the United States to the Pearl River Delta in China to the Maldives.

The world map below allows you to see elevations of coastal areas. Areas in red are the lowest in elevation and are most prone to flooding. Check out Manhattan in New York City. If you think the situation there looks dire, be sure to check out the effects of a 2 m rise in sea level on Pearl River Delta in China, home to more than 40 million people. Map courtesy of globalwarmingart.com


Surfing in / Sea Level Rise

Accelerated Warming of the Continental Shelf Off Northeast Coast

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A couple of unexplained large scale changes in the waters off the northeast coast of the U.S. have oceanographers perplexed: an accelerated rate of sea level rise compared to most other parts of the world; and the disturbing signs of collapsing fisheries in the region.

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Growing Climate Change Threat to Britain’s Historic Coastline

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Hundreds of miles of British coastline – so long the symbol of this nation’s island story – are collapsing through worsening erosion. A report by the National Trust (NT) later this year is expected to warn that more action will be needed to protect threatened sites.

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15 Facts About Sea Level Rise; A CNN Report

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We’re talking about the future here, so estimates vary by source, but the bottom line is this: Our actions today will create the world future generations will have to inhabit. Here’s a look at some of the scariest data about how much ocean levels could rise, and when.

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Last Call for Larsen B

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Located on the coast of the Antarctic Peninsula, the Larsen B remnant is about 1,600 square kilometers (625 square miles) in area and as much as 500 meters (1,640 feet) thick. This last remaining section of Larsen B Ice Shelf, which partially collapsed in 2002, is weakening and is likely to disintegrate completely before the end of the decade.

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Greenland Ice Loss: Follow the Water

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In Greenland, scientists who wish to understand ice loss will follow the water. Greenland mass loss is rising exponentially and leading to higher sea level rise. A video by Yale Climate Forum.

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Sudden Draining of Glacial Lakes Explained

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In 2008 scientists from WHOI and the University of Washington documented for the first time how the icy bottoms of lakes atop the Greenland Ice Sheet can crack open suddenly—draining the lakes completely within hours and sending torrents of water to the base of the ice sheet thousands of feet below. Now they have found a surprising mechanism that triggers the cracks.

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El Niño Can Raise Sea Levels Along U.S. Coast

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A new study has found that the cyclical climate phenomenon can ratchet up sea levels off the West Coast by almost 8 inches over just a few seasons.

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Nature Confronts Politics in North Carolina

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As local politicians underestimate rising sea levels, coastal communities are coming up with their own plans.

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Sudden and Rapid Ice Loss Discovered in Antarctica

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Scientists have observed a sudden increase of ice loss in a previously stable region of Antarctica. This makes the region the second largest contributor to sea level rise in Antarctica and the ice loss shows no sign of waning.

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Recent / Sea Level Rise

Engineers Warn East Coast Storms Point to Future Flooding, Erosion risks, Push for Town Planning Changes

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May 4th, 2015

Recent catastrophic flood events in New South Wales should sound warnings for communities across the country, water engineers say.

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Duck Beach is Sinking Fast and Deep, NC

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May 4th, 2015

The beach at Duck is sinking faster than the ocean is rising. The phenomenon, called vertical land movement, is a lesser-known part of the debate over sea-level rise…

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From Texas to Maine: NOAA’s Expanded Flood Information Tool

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April 23rd, 2015

A NOAA flood exposure risk mapping tool that was developed in New York, New Jersey, Delaware and Pennsylvania has now been expanded to cover coastal areas along the entire U.S. East Coast and Gulf of Mexico.

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County Declares Six Houses on Buxton Beach Unsafe, NC

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April 23rd, 2015

A Dare County building inspector has put up “unsafe structure” notices on six oceanfront houses north of this town on Hatteras Island, NC. Most of the recent erosion seems to be in an area where owners had placed sandbags in front of the houses.

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Miami Beach Sees Rising Seas as No Threat to Real Estate Boom, For Now

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April 22nd, 2015

Miami Beach’s condo boom is bubbling hot, with glass towers being built as fast as they can be—even as scientists say rising seas could swamp much of the storied city by the century’s end.

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Report: Soft Sand will Eventually End Beach Driving in Volusia County, Florida

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April 19th, 2015

Soft sand shifting south will eventually mean cars will no longer be able to drive along the beaches in Volusia County. According to the study, ocean levels are rising every year, which means Mother Nature may eventually decide if cars should remain on the beach regardless of what the sand does. The report also states cities with limited beach driving have higher real estate values.

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A New Report Lays Bare the Effects of Climate Change on the N.C. Coast

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April 9th, 2015

The data are in, and the numbers are unequivocal: the coast of North Carolina, and especially the northern part of the Outer Banks, is sinking into the sea.

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What the Earth Would Look Like if all the Ice Melted, Video

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April 8th, 2015

As National Geographic showed us in 2013, sea levels would rise by 216 feet if all the land ice on the planet were to melt. This would dramatically reshape the continents and drown many of the world’s major cities.

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Communicating a Hurricane’s Real Risks

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April 7th, 2015

A surprising and little known fact: More than half of those who die during hurricanes perish from drowning. For the first time this year, scientists began communicating warnings that included storm surge.

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New Interactive Storm-Surge Map Helps Residents See Potential Flood Risks

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April 7th, 2015

The National Oceanic and Atmospheric Administration is testing a new feature that lets people get a look at what kind of damage and storm surges are possible, and using nearby Charleston for the preliminary model.

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