Tag Archives: Erosion

Ocean Beach sand transfers will disrupt SF traffic on Great Highway


Ocean Beach, san Francisco. Photo source: ©© Clairity

Excerpts;

For the next two months, swaths of Ocean Beach in San Francisco will bear a certain resemblance to a life-size playground sandbox.

Bulldozers, backhoes and dump trucks will dig up and ferry 75,000 tons of sand south from the beach’s northern shores in an effort to temporarily replenish precious coastline lost to the forces of nature and accelerated by the effect of climate change…

Read Full Article, SF Chronicle (03-28-2018)

Why S.F. is Moving 42,000 Tons of Sand Down Ocean Beach, San Francisco Gate (12-06-2014)

Long-term solution sought to problem of Ocean Beach erosion, SF Chronicle (02-29-2016)
Every few years, caravans of yellow trucks move thousands of tons of sand from the north end of San Francisco’s Ocean Beach to eroded areas at the south end. And almost immediately, the silvery tide begins carrying it back to where it came from. The sand bucket brigade is a short-term solution to a more pressing problem: 3.5-mile Ocean Beach, which lines the city’s western edge, is suffering the ravages of a warming planet — hammered by winter storms and rising sea levels that are eroding the shoreline. This week, a parking lot south of Sloat Boulevard collapsed, and a nearby underground wastewater pipeline is under threat from the encroaching surf…

Old ruins emerging on SF beach reveal long battle to halt erosion, SF Gate (03-04-2016)
About a month ago, some San Franciscan beachgoers noticed something new on Ocean Beach, at the end of Taraval Street — the ruins of a mysterious structure of some kind emerging from the sand, like the remnants of a lost city…

Seafloor erosion now occurring like coastal land loss

mississippi-delta
A satellite image of the lower Mississippi River (winding dark line) shows that south of New Orleans (white, at center) the wetlands (green) are severely tattered, allowing hurricanes and other storms to push surges of water from the surrounding Gulf of Mexico right into the city, largely unimpeded. Image source: USGS – NASA.

Excerpts;

Scientists have discovered that the seafloor from the Mississippi River Delta to the Gulf of Mexico is eroding like the land loss that is occurring on the Louisiana coast.

During the 20th century, thousands of dams were built on Mississippi River tributaries stopping the flow of fine silt, clay and other sediment from reaching the delta and seafloor to offset erosion.

Without this sediment, land – in the form of wetlands and the seafloor – is lost, which threatens offshore and inland infrastructure in the face of waves, hurricanes and surge, or flooding, from storms. Land loss also affects marine plants and animals as well as how pollution is absorbed and broken down. In this new comprehensive study, scientists have mapped the retreat of the seafloor from the Mississippi River Delta into the Gulf of Mexico for the first time. This research was published recently in the journal Marine Geology…

Read Full Article; Science Daily (04-03-2018)

Human-Engineered Changes on Mississippi River Increased Extreme Floods; WHOI (04-04-2018)

DamNation; a Documentary That’s Testing the Waters of Corporate Social Responsibility; Produced by Stoecker Ecological and Felt Soul Media” and presented by Patagonia.

Undamming Rivers: A Chance For New Clean Energy Source; Yale E360 (08-07-2015)
Hydroelectric power is often touted as clean energy, but this claim is true only in the narrow sense of not causing air pollution. In many places, such as the U.S. East Coast, hydroelectric dams have damaged the ecological integrity of nearly every major river…

The Wrong Climate for Damming Rivers, A Video from Todd Southgate (05-26-2016)
Though large hydropower projects are often presented as a “clean and green” source of energy, nothing could be further from the truth…

Human-Engineered Changes on Mississippi River Increased Extreme Floods


As the Mississippi River enters the Gulf of Mexico, it loses energy and dumps its load of sediment that it has carried on its journey through the middle of the North American continent. This pile of sediment, or mud, accumulates over the years building up the delta front. Captions and photo source: NASA

Excerpts;

A new study has revealed for the first time the last 500-year flood history of the Mississippi River. It shows a dramatic rise in the size and frequency of extreme floods in the past century—mostly due to projects to straighten, channelize, and bound the river with artificial levees.

The new research, led by scientists at Woods Hole Oceanographic Institution (WHOI), also uncovered a clear pattern over the centuries linking flooding on the Mississippi with natural fluctuations of Pacific and Atlantic Ocean water temperatures. This newly recovered long-term record provides a historical context that spotlights how more recent river engineering has intensified flooding to unprecedented levels…

Read Full Article; WHOI (04-04-2018)

Illegal beach scraping practices in Florida


Photograph: © SAF — Coastal Care

Excerpts;

Four beachfront homeowners are receiving warnings from state for removing sand from beach with machinery to create a “small frontal dune at the base of the original eroded dune.”

The practice of ‘beach scraping’ was common during the early part of the 1900s, but improper practices eventually led to state regulation…

Read Full Article; First Coast News (03-30-2018)

United Airlines CEO is Accused of Taking This Bizarre Thing From a Beach; Inc (03-30-2018)

Gone with the wind: storms deepen Florida’s beach sand crunch; Reuters (02-16-2018)
Costs of so-called beach renourishments are a fraction of the total, measured in hundreds of millions of dollars, but the effort is crucial for Florida’s $67 billion tourism industry. And while sand needs are surging, there is not enough to go around…

Sand’s end, The Verge (11-17-2016)
Miami Beach has run out of sand. Now what?..

Reinforce and Build: The vicious cycle driving development on Florida’s most fragile beaches; by John Platt, Hakai Magazine (12-20-2016)

Bahamas sand to fill in Florida beaches? Congress gave OK for study but no funding; The Naples Daily News (12-20-2017)
The 2016 Water Resources Development Act authorized the Army Corps of Engineers to study using foreign sand, such as from the Bahamas, to widen shorelines without resorting to expensive and inefficient truck hauls from inland mines. A year later the study remains unfunded in the agency’s budget…

Factbox: Sifting Through U.S. Beach Sand Numbers; Reuters (02-16-2018)
Here is a summary of what Florida and other coastal states and communities have been doing to protect and rebuild their shorelines based on to the American Shore and Beach Preservation Association (ASBPA) data…

Column: The future of Florida’s beaches and the public’s right to know; Op Ed. by Orrin Pilkey (12-07-2015)

Who knows where the sand goes?


Photograph: © SAF — Coastal Care

Excerpts;

After years of rebuilding Delaware Bayshore beaches decimated by Hurricane Sandy, the American Littoral Society and its partners have developed a computer tool to help predict where the sand will travel…

Read Full Article; Press of Atlantic (03-31-2018)

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.

The Conservation Crisis No One Is Talking About, TakePart (09-21-2016)
Beaches around the world are disappearing. No, the cause isn’t sea-level rise, at least not this time. It’s a little-known but enormous industry called sand mining, which every year sucks up billions of tons of sand from beaches, ocean floors, and rivers to make everything from concrete to microchips to toothpaste…

Hotting up: how climate change could swallow Louisiana’s Tabasco island

sand-berm-louisiana
Dredging and sand berm construction in coastal Louisiana. Photo source: ©© Louisiana GOHSEP

Excerpts;

With thousands of square miles of land already lost along the coast, Avery Island, home of the famed hot sauce, faces being marooned…

Read Full Article; Guardian UK (03-27-2018)

Coastal erosion poses multibillion-dollar risk to Baton Rouge economy, LSU study says; Business Report (03-22-2017)
While Baton Rouge is not on the “front lines” of Louisiana’s coastal land loss crisis, billions of dollars worth of economic activity are at risk for the city as the Gulf of Mexico continues to swallow wetlands, which are key storm buffers along the coast, according to a new LSU study…

Rising water is swallowing up the Louisiana coastline: the $50 billion battle plan; CBS News (01-18-2017)
The geography of the Louisiana coastline is quickly changing. A state-commissioned report predicts rising water could swallow more land along the Gulf of Mexico, if nothing is done to address damage caused by climate change and commercial activity. A new master plan of 2017 calls for an investment of more than $50 billion over 50 years…

Climate change will redraw Louisiana’s flood risk maps, Newsweek (08-18-2016)

New study shows impact of human-made structures on Louisiana’s coastal wetlands, Science Daily (06-29-2016)

Resettling the First American Climate Refugees – Louisiana; The New York Times (05-03-2016)

The First Official Climate Refugees in the U.S. Race Against Time; National Geographic (05-27-2016)

Gulf Eats Away at Coast Outside Levee-Protected New Orleans, AP (09-14-2015)
In the past century, more than 1,880 square miles of Louisiana land has turned into open water — an area nearly the size of Delaware. And the loss continues unabated, with an estimated 17 square miles disappearing on average each year…

Piling sand to stop erosion ultimately made the land sink, study says; NOLA (12-26-2015)

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)

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.

First lorry-load of sand arrives at storm-hit Hemsby beach, UK

houses-coastal-erosion-uk1
Severe coastal erosion and falling houses, Norfolk, England. Photo source: ©© Martin

Excerpts;

Work has started to replace sand stripped away from a beach, following storms which left a row of houses perched on the edge of a cliff…

Read Full Article; BBC News (03-26-2018)

Seaside homes in Norfolk evacuated over fears they could fall into the sea, UK; Yahoo News UK (03-18-2018)

One in ten historic coastal landfill sites in England are at risk of erosion; Science Daily (11-16-2017)
Coastal erosion may release waste from ten per cent of England’s historic coastal landfills in the next forty years, according to research from Queen Mary University of London and the Environment Agency…

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.

Easter Island is critically vulnerable to rising ocean levels


The island’s volcanic origin has generated kilometers of amazing rocky coastline, dominated by erosional features. Captions and photo courtesy of: © Nelson Rangel-Buitrago, William J. Neal & Adriana Gracia

Excerpts;

Nicholas Casey, a New York Times correspondent based in Colombia, and Josh Haner, a Times photographer, traveled 2,200 miles off the coast of Chile to see how the rising ocean is erasing the island’s monuments…

Read Full Article; The New York Times (03-15-2018)

Te Pito O Te Henua shore (Rapa Nui or Easter Island): a remote and mysterious place with rare beaches; By Nelson Rangel-Buitrago, William J. Neal & Adriana Gracia (03-01-2018)
One of the most remote and youngest inhabited volcanic islands in the world is Te Pito o Te Henua Island, or as more commonly known: Easter Island (Rapa Nui or Isla de Pascua). World famous for its mysterious monumental statues (moai) erected by the early Rapa Nui people, the island is located in the southeastern Pacific Ocean nearly 3,650 km west of Chile…

Maps show Northland coastal erosion and flood threat to homes; NZ

new-zealand-coastalcare
New Zealand. Photo source: © SAF — Coastal Care

Excerpts;

Northland’s coast has been newly charted showing where 13,500 properties potentially stand in the path of tide and time.

Climate change, storm surges, tsunamis, earthquakes and poorly placed human footprints could all increase the risk of flooding and coastal erosion at sites identified on Northland Regional Council’s new coastal hazard maps…

Read Full Article, The New Zealand Herald (02-19-2018)

Are we loving our beaches to death? Survey says ‘yes’; Bay of Plenty Times (01-13-2017)
A new survey has found almost two-thirds of New Zealanders believed beach erosion was worse than it was 20 years ago, and most were worried that some beaches might vanish forever. In many cases, New Zealand’s beaches were paying the price for overwhelming public popularity…