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Estimating the costs and benefits of soil conservation in Europe
Economics is about problems of choice. In erosion control, both public authorities and private land users are faced with such problems. What is the impact of erosion, both on-site and off-site, and to what extent can this impact be quantified? If we conceptualize this impact in terms of ...
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Vegetation may not slow wave erosion
One assumption behind attempts to restore coastal wetlands as natural buffers against storms and floods may be wrong, a study suggests.
Experts believe that wetland vegetation could have helped to resist the coastal erosion caused by Hurricane Katrina in 2005 and other recent disasters, such as the Indian Ocean tsunami of 2004 and Cyclone Nargis, which hit Burma last year.
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Costly fix considered for Paines Creek erosion
Woods Hole Group engineer Matt Shultz explained that other solutions to save the parking lot were considered but proved insufficient or presented greater problems.
Rock-filled baskets known as gabions cause more erosion than a sloped wall and could break apart. A vertical wall could cause too much erosion to the beach in front of it. Coconut fiber logs deteriorate too quickly. And, using smaller stones, known as cobble, to protect the beach would not provide adequate support for the parking lot, he said.
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Opinion:Gov't Buries Fact that Logging Blows Our Emissions Target
Forest emissions push CO2 77 per cent higher than BC's official numbers say. We need a plan.World leaders wrapped up their summit in New York, prompting optimistic talk in some high places that the crucial climate change conference in Copenhagen in December might succeed. That's far from certain, of course, but one positive trend is that many countries with large tracts of forests are ramping up proposals about how to reduce emissions from forest loss and degradation. There is even a name for this: REDD (Reducing Emissions from Deforestation and Degradation). The government of Brazil, for example, has pledged to reduce deforestation of the Amazon rainforest by more than 70 per cent by 2018.
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Beetle attack will change our world
Global warming. Dwindling water. Massive wildfires. All are implications of the invasion.
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`Green Clean:` Researchers determining natural ways to clean contaminated soil
Researchers at North Carolina State University are working to demonstrate that trees can be used to degrade or capture fuels that leak into soil and ground water. Through a process called phytoremediation – literally a “green” technology – plants and trees remove pollutants from the environment or render them harmless.
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EPA adds 11 hazardous waste sites to superfund’s national priorities list
The U.S. Environmental Protection Agency is adding 11 new hazardous waste sites that pose risks to human health and the environment to the National Priorities List of Superfund sites. Also, EPA is proposing to add 10 other sites to the list. Superfund is the federal program that investigates and cleans up the most complex, uncontrolled or abandoned hazardous waste sites in the country.
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Australia’s Million Tons of Dust Create Feast for Ocean’s Algae
Sept. 30 (Bloomberg) -- The storms that engulfed Sydney in orange and yellow clouds last week may be a boon for sea life and lower carbon dioxide levels after as much as a million tons of dust were dumped into Australia’s oceans, providing a rich supply of food for algae.
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Iowa to Participate in New USDA Effort Aimed to Help Fix Hypoxia Problem
USDA will offer money to farmers and landowners in selected watersheds in 12 states to curb the runoff of farm chemicals and nutrients that are blamed for causing the dead zone in the Gulf of Mexico. USDA will spend $320 million over four years on this new water quality program. The money can be used to construct more wetlands, which trap pollution that washes off of fields, and to offset the cost of farming practices that prevent soil erosion.
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After the Fires: Hydrophobic Soils
Fire is a natural and important environmental factor that has affected virtually all western U.S. forests at one time or another. However, there are situations where fire can be catastrophic. Aside from property and aesthetic loss, this can include situations where highly erodible soils are exposed by burning the organic material on the soil surface.
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UTSA scientists tapped to fight soil erosion
UTSA researchers will explore the possibility of injecting living plant roots with plastic polymers in order to develop synthetic root systems. This may be useful in preventing soil erosion. Researchers will create and test liquid polymers by injecting them into the roots of the plants. Once injected, the polymers will solidify in the shape of the plant’s roots and as the live roots decompose over time, the plastic root structure will remain. This should keep the soil in place and protect it from erosion.
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Natural History of Fire & Flood Cycles
"...many people do not understand the ecological and scientific concepts behind fire. For many, fire remains a fearsome, destructive force that can and should be controlled at all costs. Smokey Bear's simple, time-honored "only you" fire prevention message has been so successful that any complex talk about the healthy, natural role of fire gets lost, ignored or denied by broad internal and external audiences."
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Climate change to alter seabed
The results of the five-year study predict potential high-risk areas due to seabed movement, erosion and changes in reef growth.
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SCV Outdoor Report: Slip Sliding Away
Hydrophobic means, "to repel water", which is exactly what this waxy-coated layer of soil does. When the rainy season arrives, the hydrophobic soil reduces the amount of water than can infiltrate the soil, leading to an increase in both runoff and soil erosion.
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The Chaparral Institute is fighting plans for controlled burns.
David Hogan of the nonprofit California Chaparral Institute in Escondido called the plan "terribly misguided," and said it will create more problems by unnecessarily destroying thousands of acres of old-growth chaparral. The communities in need of protection are far from the location of the prescribed fire, he said. Chaparral provides habitat for wildlife and protects hillsides against erosion, Hogan said.
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Rain garden: the shopping list
The list of supplies to build the rain garden included: a roll of filter fabric (of which we will use only a small part); 5 bags of gravel for the reservoir; 3 bags of compost to mix with the very clay-like soil and improve drainage; four bags of river run stone for aesthetics and erosion control; flagstone for the low wall; flex pipe to collect and direct the rainwater from the downspout, and four bags of shredded hardwood mulch.
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Dow-funded U-M dioxin study criticized for bias
For the last six years, University of Michigan research funded by Dow Chemical has figured prominently in public discussions over what to do about the dioxin contamination caused by the company in the Saginaw River watershed. Federal and state environmental agencies have warned that U-M’s Dioxin Exposure Study has failed to answer crucial questions and that its results are being misinterpreted.
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American Shore & Beach Preservation Association analyzes upcoming beach restoration Supreme Court case
FORT MYERS — Although the U.S. Supreme Court case entitled "Stop the Beach Renourishment v. The Florida Department of Environmental Protection et al." is a Florida issue, it will likely have national implications. The court will decide whether state legislation to restore eroded beaches constitutes a regulatory taking or violates the Fifth Amendment.
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