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

California prepares policy for coastal ‘retreat’

Oceanfront homes could be demolished along California’s coastline under a groundbreaking proposal to preserve the state’s made-for-movies beaches before they’re destroyed by rising seawater. The California Coastal Commission plans to release guidance early next year for dealing with sea-level rise in residential areas.

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Coastal Warning: An Unwelcome Messenger on the Risks of Rising Seas; By Orrin H. Pilkey

Marine scientist Orrin Pilkey has long been cautioning about sea level rise and the folly of building and rebuilding along coastlines. In an interview with Yale Environment 360, he talks about why an eventual retreat from oceanfront property on the U.S. coast is inevitable.

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‘Washaway Beach,’ fastest-eroding place on the West Coast, cobbles together a solution

There’s a reason a quiet and desolate strip of sand here is nicknamed Washaway Beach. Coastal erosion has claimed an average of 100 feet of this shoreline every year for the last century. That makes North Cove the fastest-eroding place on the West Coast.

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Is Your Home At Risk Of Flooding From Rising Seas By 2050? Check This Map.

Even if the world more aggressively tackles global warming, about 350,000 homes across the US, worth about $190 billion at today’s prices, are built on land that’s at risk of annual flooding by 2050. And if no steps are taken to curb carbon emissions, the number of at-risk homes jumps to about 385,000.

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The Largest River Delta in Europe

Over the past century, the Volga Delta has grown from 3,222 square kilometers (1,244 square miles) in 1880 to 27,224 square kilometers (10,511 square miles) today. This significant growth is due both to sea level changes in the Caspian and the broad, gentle slope of the delta.

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The Caribbean island of Mayreau could be split in two due to erosion

After years of erosion by the waves, people living on Mayreau, an island in the southern Grenadines, are confronted with the real possibility that the sea will split their island in two, and destroy its world famous Salt Whistle Bay.

Comments Off on The Caribbean island of Mayreau could be split in two due to erosion

Coastal property was once king. Fears of climate change are undermining its value

In a growing number of coastal communities, homes near the sea are appreciating more slowly than those inland. That’s bad news for people on the beach, good news for those farther away.

Comments Off on Coastal property was once king. Fears of climate change are undermining its value

Climate change, rising sea levels a threat to farmers in Bangladesh

Rising sea levels driven by climate change make for salty soil, and that is likely to force about 200,000 coastal farmers in Bangladesh inland as glaciers melt into the world’s oceans, according to estimates from a new study from The Ohio State University.

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Remote Hawaiian Island Wiped Off The Map

East Island was destroyed by storm surge from Hurricane Walaka, which roared through the northwestern Hawaiian Islands as a powerful Category 3 storm this month. “This event is confronting us with what the future could look like,” one federal scientist said about the loss of East Island.

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Recent / Sea Level Rise

California prepares policy for coastal ‘retreat’

December 7th, 2018

Oceanfront homes could be demolished along California’s coastline under a groundbreaking proposal to preserve the state’s made-for-movies beaches before they’re destroyed by rising seawater. The California Coastal Commission plans to release guidance early next year for dealing with sea-level rise in residential areas.

Read More

Coastal Warning: An Unwelcome Messenger on the Risks of Rising Seas; By Orrin H. Pilkey

December 6th, 2018

Marine scientist Orrin Pilkey has long been cautioning about sea level rise and the folly of building and rebuilding along coastlines. In an interview with Yale Environment 360, he talks about why an eventual retreat from oceanfront property on the U.S. coast is inevitable.

Read More

‘Washaway Beach,’ fastest-eroding place on the West Coast, cobbles together a solution

November 24th, 2018

There’s a reason a quiet and desolate strip of sand here is nicknamed Washaway Beach. Coastal erosion has claimed an average of 100 feet of this shoreline every year for the last century. That makes North Cove the fastest-eroding place on the West Coast.

Read More

Is Your Home At Risk Of Flooding From Rising Seas By 2050? Check This Map.

November 14th, 2018

Even if the world more aggressively tackles global warming, about 350,000 homes across the US, worth about $190 billion at today’s prices, are built on land that’s at risk of annual flooding by 2050. And if no steps are taken to curb carbon emissions, the number of at-risk homes jumps to about 385,000.

Read More

The Largest River Delta in Europe

November 12th, 2018

Over the past century, the Volga Delta has grown from 3,222 square kilometers (1,244 square miles) in 1880 to 27,224 square kilometers (10,511 square miles) today. This significant growth is due both to sea level changes in the Caspian and the broad, gentle slope of the delta.

Read More

The Caribbean island of Mayreau could be split in two due to erosion

November 11th, 2018

After years of erosion by the waves, people living on Mayreau, an island in the southern Grenadines, are confronted with the real possibility that the sea will split their island in two, and destroy its world famous Salt Whistle Bay.

Read More

Coastal property was once king. Fears of climate change are undermining its value

November 6th, 2018

In a growing number of coastal communities, homes near the sea are appreciating more slowly than those inland. That’s bad news for people on the beach, good news for those farther away.

Read More

Climate change, rising sea levels a threat to farmers in Bangladesh

October 26th, 2018

Rising sea levels driven by climate change make for salty soil, and that is likely to force about 200,000 coastal farmers in Bangladesh inland as glaciers melt into the world’s oceans, according to estimates from a new study from The Ohio State University.

Read More

Remote Hawaiian Island Wiped Off The Map

October 25th, 2018

East Island was destroyed by storm surge from Hurricane Walaka, which roared through the northwestern Hawaiian Islands as a powerful Category 3 storm this month. “This event is confronting us with what the future could look like,” one federal scientist said about the loss of East Island.

Read More

“We are at war”: Expect almost 5 feet of sea level rise when planning for the future, leaders say

October 22nd, 2018

Building a road, a school, a bridge in Hampton Roads? Think about how long you want it to be around, and whether it might be underwater by then. That’s what regional planners recommend in light of sea levels projected to rise nearly 5 feet over the next century.

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