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

Sea levels are already rising. What’s next?

Climate change is battering coasts with storms and floods, but we still haven’t grappled with the risks of what’s to come.

Comments Off on Sea levels are already rising. What’s next?

Coastal Commission Rejects Bid to Cancel Broad Beach Sand Replacement Permit

One of the line-items on the November 2017 California Coastal Commission agenda was a one-year extension of the beleaguered Broad Beach Replenishment Project. Following years of delays with issues ranging from sand sourcing to legal battles of all shapes and sizes, the project has been slow to get off the ground, and proponents of alternatives such as artificial reefs are hoping to succeed.

Comments Off on Coastal Commission Rejects Bid to Cancel Broad Beach Sand Replacement Permit

On N.H.’s Coast, Preparing for Future Storms with Grass, Sand and a Bit of Time

As New Hampshire’s coastline prepares for a world with rising seas and stronger storms, communities and homeowners have different options, none of them simple. But some scientists in New Hampshire are pitching a more natural approach. All it takes is a little grass and some time.

Comments Off on On N.H.’s Coast, Preparing for Future Storms with Grass, Sand and a Bit of Time

South Carolina not doing enough to protect beaches, report says

South Carolina’s beach preparations are barely adequate to deal with worsening erosion, sea rise and intensifying storms, according to the latest Surfriders Foundation report.

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Study: NC gets ‘D’ for climate change policies

Days after a federal report issued a harsh warning about climate change, an environmental group said North Carolina’s policies leave the state among the most ill-prepared on the East Coast to deal with the effects of rising seas.

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While a new island grew, southern Hatteras was shrinking, NC

Whatever forces crafted the new, crescent-shaped island at Cape Point is steadily gulping down the south end of Hatteras Island, spitting aside trees, power poles and a popular route for off-road vehicles.

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Intensifying winds could increase east Antarctica’s contribution to sea level rise

A new study led by the University of Texas Institute for Geophysics has found that wind over the ocean off the coast of East Antarctica causes warm, deep waters to upwell, circulate under Totten Glacier, the largest glacier in East Antarctica, and melt the fringes of the East Antarctic ice sheet from below.

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Ancient storms could have hurled huge boulders, scientists say – raising new concerns of rising seas

An international team of researchers has come up with a new theory to explain how two giant boulders could have made their way atop a cliff on the Bahamian island of Eleuthera. They suspect it has something to do with the Atlantic Ocean far below them.

Comments Off on Ancient storms could have hurled huge boulders, scientists say – raising new concerns of rising seas

Malibu, CA: Broad Beach Sand Project Costs Jump to $55-60 Million Per Decade

The Broad Beach Geologic Hazard Abatement District (GHAD) is now contending with another set of lawsuits over a project originally estimated to cost about $20 million, which is now estimated to cost $55 to $60 million every 10 years. The project will involve bringing in megatons of sand every few years to restore the disappearing beach and dunes.

Comments Off on Malibu, CA: Broad Beach Sand Project Costs Jump to $55-60 Million Per Decade


Recent / Sea Level Rise

Sea levels are already rising. What’s next?

November 19th, 2017

Climate change is battering coasts with storms and floods, but we still haven’t grappled with the risks of what’s to come.

Read More

Coastal Commission Rejects Bid to Cancel Broad Beach Sand Replacement Permit

November 17th, 2017

One of the line-items on the November 2017 California Coastal Commission agenda was a one-year extension of the beleaguered Broad Beach Replenishment Project. Following years of delays with issues ranging from sand sourcing to legal battles of all shapes and sizes, the project has been slow to get off the ground, and proponents of alternatives such as artificial reefs are hoping to succeed.

Read More

On N.H.’s Coast, Preparing for Future Storms with Grass, Sand and a Bit of Time

November 9th, 2017

As New Hampshire’s coastline prepares for a world with rising seas and stronger storms, communities and homeowners have different options, none of them simple. But some scientists in New Hampshire are pitching a more natural approach. All it takes is a little grass and some time.

Read More

South Carolina not doing enough to protect beaches, report says

November 8th, 2017

South Carolina’s beach preparations are barely adequate to deal with worsening erosion, sea rise and intensifying storms, according to the latest Surfriders Foundation report.

Read More

Study: NC gets ‘D’ for climate change policies

November 8th, 2017

Days after a federal report issued a harsh warning about climate change, an environmental group said North Carolina’s policies leave the state among the most ill-prepared on the East Coast to deal with the effects of rising seas.

Read More

While a new island grew, southern Hatteras was shrinking, NC

November 3rd, 2017

Whatever forces crafted the new, crescent-shaped island at Cape Point is steadily gulping down the south end of Hatteras Island, spitting aside trees, power poles and a popular route for off-road vehicles.

Read More

Intensifying winds could increase east Antarctica’s contribution to sea level rise

November 3rd, 2017

A new study led by the University of Texas Institute for Geophysics has found that wind over the ocean off the coast of East Antarctica causes warm, deep waters to upwell, circulate under Totten Glacier, the largest glacier in East Antarctica, and melt the fringes of the East Antarctic ice sheet from below.

Read More

Ancient storms could have hurled huge boulders, scientists say – raising new concerns of rising seas

November 2nd, 2017

An international team of researchers has come up with a new theory to explain how two giant boulders could have made their way atop a cliff on the Bahamian island of Eleuthera. They suspect it has something to do with the Atlantic Ocean far below them.

Read More

Malibu, CA: Broad Beach Sand Project Costs Jump to $55-60 Million Per Decade

October 31st, 2017

The Broad Beach Geologic Hazard Abatement District (GHAD) is now contending with another set of lawsuits over a project originally estimated to cost about $20 million, which is now estimated to cost $55 to $60 million every 10 years. The project will involve bringing in megatons of sand every few years to restore the disappearing beach and dunes.

Read More

How cities are defending themselves against sea level rise

October 30th, 2017

Superstorm Sandy and a series of lesser coastal storms since that 2012 disaster compelled some coastal communities to defend themselves by elevating homes and critical infrastructure, building sand dunes, widening beaches and erecting or raising sea walls. But as sea levels continue to rise around the world, that’s not an option in large cities.

Read More