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

Communicating a Hurricane’s Real Risks

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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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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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Sand Cents

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The value of many oceanfront properties on the East Coast could drop dramatically if Congress were to suddenly end federal beach nourishment subsidies. Values could fall by as much as 17 percent in towns with high property values and almost 34 percent in towns with low property values.

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Revised NC Sea Level Report Predicts Rise Along Entire Coast

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Released Tuesday by the Coastal Resources Commission’s Science Panel, the report presents three scenarios for rising seas along the coast through 2045, based on global predictions and historical data from five tidal gauges.

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Big Shelves Of Antarctic Ice Melting Faster Than Scientists Thought

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The Antarctic is far away, freezing and buried under a patchwork of ice sheets and glaciers. But a warming climate is altering that mosaic in unpredictable ways — research published Thursday shows that the pace of change in parts of the Antarctic is accelerating.

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Doubling of Coastal Erosion by Mid-Century in Hawai’i

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Chronic erosion dominates the sandy beaches of Hawai’i, causing beach loss as it damages homes, infrastructure, and critical habitat. Researchers have long understood that global sea level rise will affect the rate of coastal erosion. However, new research indicates that coastal erosion of Hawai’i’s beaches may double by mid-century.

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Facing Coastal Erosion: a Dilemma for the Residents

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This past week’s exceptionally high tides revived a debate that has been dividing residents of the Atlantic island of Noirmoutier, off Vendée’s coast, France.

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Seagull Drive Legal Saga Finally Ends, NC

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Five years after the town declared them public nuisances, six dilapidated houses in South Nags Head will finally be torn down.

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UK’s Coastal Railways Vulnerable to Climate Threat, Expert Warns

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Hundreds of miles of railway lines around Britain’s coast are becoming increasingly vulnerable to waves, landslides and storms triggered by climate pollution.

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Recent / Sea Level Rise

What the World’s Cities Would Look Like If Every Glacier Melted

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February 11th, 2015

A planner maps extreme sea level rise, turning Los Angeles, New York, London, and other cities into urban archipelagoes.

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Satellite Science Improves Storm Surge Forecasting Around the World

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February 6th, 2015

A new online resource which will help coastguards, meteorological organisations and scientific communities predict future storm surge patterns has been created.

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Greenland’s Hidden Meltwater Lakes Store Up Trouble

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February 6th, 2015

Scientists find evidence of vast ‘storage tanks’ of water deep below the melting Greenland ice sheet that could have a major effect on sea level rise.

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Flooding Could Become Daily Problem in N.C. by 2045

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February 2nd, 2015

North Carolina’s coast will see more frequent and more destructive floods at high tide over the next 30 years, several studies say – even on mild, sunny days – as rising sea levels shove the Atlantic Ocean higher onto our shores.

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U.S. Cities Lag in Race against Rising Seas

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January 20th, 2015

In just a few decades, most U.S. coastal regions are likely to experience at least 30 days of nuisance flooding every year.

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For Vulnerable Barrier Islands, A Rush to Rebuild on U.S. Coast

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January 18th, 2015

Despite warnings from scientists, new construction continues on U.S. barrier islands that have been devastated by storms. The flood protection projects that accompany this development can have harmful consequences for coastal ecosystems being buffeted by climate change.

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Sea Level Rising Faster Than Previously Thought

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January 16th, 2015

The world’s oceans are now rising far faster than they did in the past, a new study says.

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Pakistan’s Coastal Villagers Retreat as Seas Gobble Land

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January 12th, 2015

Climate change is clearly increasing vulnerabilities in the Indus Delta area. Sea-level rise is contributing to higher storm surges, erosion, flooding and salinity, according to WWF-Pakistan.

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Integrated Farming: The Only Way to Survive a Rising Sea

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January 9th, 2015

Increased salinity now affects farmlands in 52 of the roughly 102 inhabited islands on the Indian side of the massive tidal mangrove forest covering some 10,000 km in the vast Bay of Bengal delta.

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North Carolina Should Move With Nature on Coast

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January 5th, 2015

Sandbags can’t hold back the sea. Neither will a state policy allowing “terminal groins,” barriers of rock and steel that run perpendicular to the shore in a futile effort to make a shifting coastline stable.

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