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Updated: 5 hours 33 min ago

One in ten historic coastal landfill sites in England are at risk of erosion

Thu, 16/11/2017 - 01:52
There are at least 1,215 historic coastal landfill sites in England, mostly clustered around estuaries with major cities, including Liverpool, London, and Newcastle on Tyne. An investigation by researchers finds that 122 sites are at risk of starting to erode into coastal waters by 2055 if not adequately protected.

Changing climate to bring more landslides on logged land, say researchers

Thu, 09/11/2017 - 15:32
Researchers say landslides on logged forests will be more widespread as the Northwest climate changes. In a study modelled on clear-cut lands on the Olympic Peninsula, they anticipate the climate of 2045 and conclude that there will be a 7 -11 percent increase in the land that is highly vulnerable to landslides. The researchers say their findings are applicable to the Cascade Mountain Range area as well.

First coast-to-coast land motion map of Scotland derived from satellite radar images

Tue, 07/11/2017 - 18:29
Using hundreds of satellite radar images a research team has created a complete map of mainland Scotland.

Scientists identify hotspots of coastal risks in Latin America and the Caribbean

Thu, 02/11/2017 - 20:10
The catastrophic 2017 hurricane season provided ample demonstrations of the vulnerability of populations and infrastructure in coastal areas to natural disasters. A new study identifies hotspots of coastal risks throughout Latin America and the Caribbean.

Sea-level rise, not stronger storm surge, will cause future NYC flooding

Mon, 23/10/2017 - 23:25
Rising sea levels caused by a warming climate threaten greater future storm damage to New York City, but the paths of stronger future storms may shift offshore, changing the coastal risk for the city, according to a team of climate scientists.

Why did the 2014 Oso, WA, landslide travel so far?

Mon, 23/10/2017 - 23:25
On Saturday, 22 March 2014, a devastating landslide roared across the North Fork of the Stillaguamish River, near Oso, Washington. The landslide killed 43 people as it plowed through the Steelhead Haven neighborhood. When it stopped, after crossing the river, the neighborhood, and State Route 530, the Oso landslide had traveled 1.4 kilometers.

Salmon sex linked to geological change

Thu, 19/10/2017 - 15:08
It turns out that sex can move mountains. Researchers have found that the mating habits of salmon can alter the profile of stream beds, affecting the evolution of an entire watershed. The study is one of the first to quantitatively show that salmon can influence the shape of the land.

Forest grazing counteracts the effectiveness of trees to reduce flood risk

Tue, 10/10/2017 - 16:46
Planting trees can reduce flood risk, but a high intensity forest land use, such as grazing, can counteract the positive effect of the trees, a recently published study suggests. The study investigated the rate that water infiltrated the soil under trees at an experimental agroforestry site in Scotland.

Preservation of floodplains is flood protection

Wed, 27/09/2017 - 15:23
The silting of rivers and streams leads to problems for fish, mussels, and other aquatic organisms because their habitats disappear. However, not only intensive agriculture and erosion are destroying these habitats. Now a study refutes this widespread view. In order to save the species living in the river basin -- and protect people from the threat of floods -- rivers need more space, diversity, and freedom.

Removing nitrate for healthier ecosystems

Wed, 27/09/2017 - 14:33
In a new study, researchers have identified nitrate removal hotspots in landscapes around agricultural streams.

New study analyzes causes of 2010 landslide in Saint-Jude, Quebec

Tue, 26/09/2017 - 13:59
A new study discusses triggers of the Saint-Jude landslide in Quebec that occurred in nearly 10,000-year-old sensitive clay sediment that 'liquefies' when disturbed.

Decade of data shows FEMA flood maps missed 3 in 4 claims

Tue, 12/09/2017 - 22:05
An analysis of flood claims in three Houston suburbs from 1999-2009 found that the Federal Emergency Management Agency's 100-year flood plain maps failed to capture 75 percent of flood damages from five serious floods, none of which reached the threshold rainfall of a 100-year event.

Increasing effective decision-making for coastal marine ecosystems

Thu, 07/09/2017 - 15:23
Marine restoration, rather than protection, might be the most cost-effective solution for coastal marine ecosystems suffering from human activities, a new study has found. The study examined how to best benefit coastal marine ecosystems on limited conservation budgets, to help managers better understand the trade-offs.

Digging in the dirt: Researchers develop new methods for assesing risk of subsurface phosphorus

Thu, 17/08/2017 - 15:07
New methods for assessing the loss of phosphorus in soil have now been developed by researchers. While current measurements focus mainly on surface runoff, the new research is looking at the best way to measure the risk of underground phosphorus that winds up in drainage water.

Florida flood risk study identifies priorities for property buyouts

Thu, 17/08/2017 - 14:28
A study of flood damage in Florida proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the Atlantic Ocean this year, while a rising sea level is making Florida increasingly vulnerable to dangerous flooding.

Climate change shifts timing of European floods

Thu, 10/08/2017 - 19:15
A linkage between climate change and floods has been identified using a river flow dataset of unparalleled scale and diversity. This is the first time this link has been demonstrated at a continental scale using observational data.

The only way is up: Trees help reptiles thrive

Thu, 10/08/2017 - 15:49
If graziers leave trees in place on their land, all types of reptiles will benefit, investigators suggest in a new report.

Complex causes of Maldives flooding

Mon, 07/08/2017 - 13:23
The causes of coastal flooding in the Maldives are more complex than previously thought, according to a new study. Researchers examined wave and sea level data around historic flood events and found that multiple factors contribute to flooding in the Indian Ocean island chain, which has an average land elevation of just one meter.