Tag Archives: Erosion

Study seeks to protect key sites from coastal erosion; Scotland


Excavation of a house buried in sand in 1690, in a valley behind the Quenelle Beach, Shetland Islands, UK. Many other dunes cover former residences. Captions and Photo courtesy of: © Joe Kelley, University of Maine

Excerpts;

Researchers are investigating ways to protect Scotland’s coastline against the effects of climate change…

Read Full Article, BBC News (01-05-2018)

Heritage at Risk: How Rising Seas Threaten Ancient Coastal Ruins; Yale E360 (07-17-2017)
The shores of Scotland’s Orkney Islands are dotted with ruins that date to the Stone Age. But after enduring for millennia, these archaeological sites – along with many others from Easter Island to Jamestown – are facing an existential threat from climate change…

Climate Change and Communities: An example from the Outer Hebrides; A Video featuring Pr. Andrew Cooper (11-26-2012)
Professor Andrew Cooper, University of Ulster, narrates this video on the problems facing local communities in the Outer Hebrides…

The Texas Coastline Is Slowly Disappearing. Here’s How One Community Is Coping

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Coastal restoration. Photograph: © SAF — Coastal Care

Excerpts;

The Lone Star State’s shoreline is experiencing one of the highest rates of land loss of any coastal area in the country due to a combination of subsidence, sea level rise and storm surges…

Read Full Article, Houston Public Media (01-02-2018)

Looking to Holland to find more sand for Galveston Island, Texas; HPM University of Houston (08-30-2016)

County meets with state for coastal erosion plan, Texas; PaNews (11-26-2016)
A coastline that is resilient in response to coastal hazards is one that maintains a strong ecological foundation, according to the Preview of the Texas General Land Office’s Texas Coastal Resiliency Master Plan. The estimated cost for the restoration of beaches and dunes for Region 1 that runs from Orange County to Brazoria County, would be for a total of $540 million to $1.4 billion…

“Living Shorelines” Will Get Fast Track to Combat Sea Level Rise, Scientific American (07-06-2016)

Living shorelines a more natural approach to preventing coastal erosion, WNCT (05-18-2016)
For centuries, large bulkheads have been used to help control erosion along coastlines. More recent research suggests that a natural approach may be a better alternative. Having nature on your side, especially during a storm or hurricane, is proven to provide better protection from coastal erosion…

Living Shorelines: Better Than Bulkheads, Coastal Review Online (02-08-2016)
More than 14,000 miles – 14 percent of continental U.S. coastline — has been armored with hardened structures. Hardened structures cause elevated rates of erosion on the shoreward side of the structure…

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.

NOAA Study Finds Marshes, Reefs, Beaches Can Enhance Coastal Resilience, NOAA (04-29-2015)

Coastal erosion needs our attention, South Coast Today (01-04-2016)

NOAA study finds ‘living shorelines’ can lessen climate change’s effects, NOAA (12-22-2015)

Coastline changes; Hanalei, Kauai


Coastal erosion. Photograph: © SAF — Coastal Care

Excerpts;

A wall of tangled roots separates the park at Black Pot from the beach, and the erosion has drastically changed the beach from six months ago.

While geologists say shifting sands aren’t unusual, it’s a prediction of what could be coming in the next few decades and scientists say long-term studies of the area are necessary…

Read Full Article, The Garden Island (12-28-2017)

Authorities seek fixes to unprecedented erosion at Sunset Beach, Oahu, Hawaii News Now (12-21-2017)

Erosion creates dangerous cliff conditions on Oahu’s North Shore; KHON2 (12-17-2017)

70 Percent of Beaches Eroding On Hawaiian Islands Kauai, Oahu, and Maui, USGS (05-08-2012)

Doubling of Coastal Erosion by Mid-Century in Hawai’i, Science Daily (03-24-2015)
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…

Living on the shores of Hawaii: natural hazards, the environment, and our communities, A book by Chip Fletcher; Robynne Boyd, William J. Neal and Virginia Tice.

Maui community scrambles to save a cemetery washing away


Coastal erosion. Photograph: © SAF — Coastal Care

Excerpts;

The growing threat of coastal erosion is taking a toll on dozens of properties on Maui, including a cemetery at an historic site…

View Video Read Full Article; Hawaii News Now (12-28-2017)

Cemeteries in the Sea; By William J. Neal & Orrin H. Pilkey
Cemeteries by the sea are silent sentinels. Like lighthouses and coastal fortifications, they bear dates of former times when they were on high and dry land…

Cooks government ready to deal with vulnerable cemetery, Radio NZ (02-22-2016)
The Cook Islands government says work on a retaining wall that will protect a cemetery from losing more graves to the sea is going to start immediately…

Authorities seek fixes to unprecedented erosion at Sunset Beach, Oahu


Sunset Beach on Oahu’s North Shore. Photograph: © SAF — Coastal Care

Excerpts;

Experts say the severe erosion taking place at Sunset Beach is reaching unprecedented levels, leaving city and state officials hustling to find both short- and long-term solutions to address the rising sea levels.

Researchers at the University of Hawaii say the shoreline at Sunset Beach is the most landward it has ever been, according to historical records and aerial photos…

Read Full Article, Hawaii News Now (12-21-2017)

Erosion creates dangerous cliff conditions on Oahu’s North Shore; KHON2 (12-17-2017)

70 Percent of Beaches Eroding On Hawaiian Islands Kauai, Oahu, and Maui, USGS (05-08-2012)

Doubling of Coastal Erosion by Mid-Century in Hawai’i, Science Daily (03-24-2015)
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…

Living on the shores of Hawaii: natural hazards, the environment, and our communities, A book by Chip Fletcher; Robynne Boyd, William J. Neal and Virginia Tice.

Scientists Urge Shoreline Retreat From Hawaii’s Eroding Beaches, EE News
Sea-level rise is a significant factor in the major shoreline change underway in Hawaii, where 52 to 72 percent of beaches on the chain of islands have eroded over the past century.

California cliffs at risk of collapse identified


Severe coastal erosion, Isla Vista, California. Photograph: © SAF — Coastal Care

Excerpts;

Danger — Unstable Cliffs — Stay Back: The yellow warning signs that pepper coastal cliffs from northern California to the US-Mexico border may seem overly dramatic to the casual observer. But actively eroding cliffs make up the majority of the California coastline, and sudden landslides and collapses have caused injuries and several fatalities in recent years. In addition, eroding cliffs currently threaten highways, houses, businesses, military bases, parks, power plants, and other critical facilities, all in all billions of dollars of development.

Research suggests that erosion rates will increase as sea level rises, further exacerbating these problems…

Read Full Article, Science Daily (12-20-2017)

Disappearing Beaches: Modeling Shoreline Change in Southern California; USGS (02-14-2017)
Using a newly-developed computer model, scientists predict that with limited human intervention, 31 to 67 percent of Southern California beaches may become completely eroded (up to existing coastal infrastructure or sea-cliffs) by the year 2100 under scenarios of sea-level rise of one to two meters…

Worst erosion in 150 years tears 180 feet from SF’s Ocean Beach; SF Gate (02-15-2017)
The beaches lining the coast between Mexico and Canada form a protective barrier that keeps the turbulent ocean from eating away at seaside cliffs and flooding low-lying coastal towns and cities, scientists say…

Beach bashing: Last year’s El Niño resulted in unprecedented erosion of Pacific coastline, Science Daily (02-14-2017)

Erosion creates dangerous cliff conditions on Oahu’s North Shore

oahu
Sunset Beach on Oahu’s North Shore, November 2016. Photograph: © SAF — Coastal Care

Excerpts;

Stay away from Sunset Beach.

That’s the latest warning from the city Ocean Safety and Lifeguard Services Division as extreme erosion takes its toll on Oahu’s North Shore…

Read Full Article, KHON2 (12-17-2017)

70 Percent of Beaches Eroding On Hawaiian Islands Kauai, Oahu, and Maui, USGS (05-08-2012)

Doubling of Coastal Erosion by Mid-Century in Hawai’i, Science Daily (03-24-2015)
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…

Officials confirm some Kailua Beach Park sand is going to city golf courses; KHON2 (10-23-2016)
Kailua residents are demanding answers after a dump truck filled with sand was spotted leaving Kailua Beach Park and heading to town. Residents say it was all the more suspect because of the Kuhio Beach erosion headlines at the same time…

Living on the shores of Hawaii: natural hazards, the environment, and our communities, A book by Chip Fletcher; Robynne Boyd, William J. Neal and Virginia Tice.

Waikiki Beach Eroding Less Than A Year After $2.2M Sand Restoration, Pacific Business News (Uploaded 01-24-2013)
A section of Hawaii’s famed Waikiki Beach is starting to erode, less than a year after the completion of a $2.2 million project to replenish the sand on about 1,730 feet of shoreline that had been suffering from chronic erosion.

Scientists Urge Shoreline Retreat From Hawaii’s Eroding Beaches, EE News
Sea-level rise is a significant factor in the major shoreline change underway in Hawaii, where 52 to 72 percent of beaches on the chain of islands have eroded over the past century.

Pilkey’s Call: Save The Beaches; News Observer (08-09-2015)
Beaches move, and with rising sea levels they are moving faster. People try to slow or halt the process by dredging up sand or erecting imposing seawalls, but those are destructive and doomed efforts. To save the beaches, we must let beaches go where and how they want…

Sand in the gears of climate change


Sandbagged, trashed beach at South Nags Head, N.C. in February 1987, with some evidence of bags that have been torn or ruptured and have leaked sand. The scarp under the houses indicates that storm waves are topping the bags, and buildings were damaged or lost in the end. Captions and Photo courtesy of: © Orrin Pilkey.

Excerpts;

For decades it’s been well understood that soft-sand beaches move — and that hard structures like concrete sea walls and stone jetties can in fact accelerate erosion. With climate change — rising sea levels and more frequent violent storms — the inevitable beach erosion and migration has only increased…

Read Full Article, The Boston Globe (12-15-2017)

Protecting The Netherlands’ Vulnerable Coasts With A ‘Sand Motor’

FH-Kaemmerer-Am-strand
“Am Strand” 1870, by Dutch painter Frederik Hendrik Kaemmerer. Image source: Public Domain / Wikimedia

Excerpts;

Along the southwestern coast of the Netherlands, not far from The Hague, kite surfers glide on the waves around a huge sand peninsula where beachcombers photograph seagulls.

But the peninsula is more than just a recreation spot. It’s also an experiment in coastal management: It keeps the sea away from nearby cities.

The Dutch call it “De Zandmotor” — the Sand Motor, also known as the Sand Engine…

Read Full Article, NPR (11-25-2017)

Looking to Holland to find more sand for Galveston Island, Texas, HPM University of Houston (08-30-2016)
For years, sand has been returned to eroded beaches and dunes on Galveston Island by bulldozers and backhoes at a cost of millions of dollars. Now, a new idea: let Mother Nature do the work…

Dutch Unveil Plan In War Against The Sea: A Sandbar, AFP / TerraDaily (12-20-2011)
In its age-old war to keep back the sea, low-lying Netherlands has dumped sand onto a surface larger than 200 football fields just off the coast, and will wait for nature to do the rest…

The Netherlands: Sand Motor conference to take place in September; Dredging News Online (08-09-2016)
Five years after the creation of the Sand Motor, the initial research results from this pilot project will be presented with respect to coastal safety, innovation, nature and recreation. It will be the central focus of a two-day international conference…

Sand-engine to protect against coastal erosion, UK; PhysOrg (10-29-2015)

A Tale of Two Northern European Cities: Meeting the Challenges of Sea Level Rise; Yale E360 (11-07-2015)

Belgium is to build its first artificial island off the coast, as climate change mitigation; Le Figaro (10-04-2016)
Amid rising seas, Belgium plans on building an artificial island off its coast, in a step towards climate change mitigation. 8 millions euros have been provided in funding of the project study…

The world hungers for sand; Deutschland DE (09-26-2017)

Sand, Rarer Than One Thinks: A UNEP report (GEA-March 2014)
Despite the colossal quantities of sand and gravel being used, our increasing dependence on them and the significant impact that their extraction has on the environment, this issue has been mostly ignored by policy makers and remains largely unknown by the general public.
In March 2014 The United Nations released its first Report about sand mining. “Sand Wars” film documentary by Denis Delestrac – first broadcasted on the european Arte Channel, May 28th, 2013, where it became the highest rated documentary for 2013 – expressly inspired the United Nations Environment Programme (UNEP) to publish this 2014-Global Environmental Alert.

Let’s end war with ocean, Op-Ed by Orrin H. Pilkey
The immediate future most certainly holds more miles of sandbags, resulting in more narrowed and ugly beaches.But this trend can be halted and reversed. Now is the time to make peace with the ocean.The time is now to stop sandbagging, both physically with no more shore-hardening structures, and politically with no more exceptions to the intent of the rules, no more undermining existing legislation, and a return to enforcement…

Rethinking Living Shorelines, By Orrin H. Pilkey, Rob Young, Norma Longo, and Andy Coburn;Program for the Study of Developed Shorelines / Western Carolina University, March 1, 2012, Nicholas School of the Environment, Duke University
In response to the detrimental environmental impacts caused by traditional erosion control structures, environmental groups, state and federal resource management agencies, now advocate an approach known as “Living Shorelines”that embraces the use of natural habitat elements such as indigenous vegetation, to stabilize and protect eroding shorelines.