Las plantas de energía de gas natural producen importantes cantidades de gases que provocan el calentamiento global. La sustitución de viejas plantas eléctricas a base de carbón con nuevas plantas de gas natural podría causar que el daño climático aumente en las próximas décadas, a menos que sus tasas de fugas de metano son muy bajas y las nuevas plantas de energía sean muy eficientes...

 

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A systematic overview of more than 100 studies comparing organic and conventional farming finds that the crop yields of organic agriculture are higher than previously thought. The study, conducted by UC Berkeley researchers, also found that certain practices could further shrink the productivity gap between organic crops and conventional farming.

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Wind turbine developments have no effect on property values of nearby homes and farms, according to new research from the University of Guelph. Published in a recent issue of the Canadian Journal of Agricultural Economics, the study is believed the first peer-reviewed study on this issue in Canada.

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In the battle between native and invasive wetland plants, a new Duke University study finds climate change may tip the scales in favor of the invaders -- but it's going to be more a war of attrition than a frontal assault.

"Changing surface-water temperatures, rainfall patterns and river flows will likely give Japanese knotweed, hydrilla, honeysuckle, privet and other noxious invasive species an edge over less adaptable native species," said Neal E. Flanagan, visiting assistant professor at the Duke Wetland Center, who led the research. 

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Large-scale storage of low-pressure, gaseous hydrogen in salt caverns and other underground sites for transportation fuel and grid-scale energy applications offers several advantages over above-ground storage, says a recent Sandia National Laboratories study sponsored by the Department of Energy’s Fuel Cell Technologies Office.

Geologic storage of hydrogen gas could make it possible to produce and distribute large quantities of hydrogen fuel for the growing fuel cell electric vehicle market, the researchers concluded.

Geologic storage solutions can service a number of key hydrogen markets since “costs are more influenced by the geology available rather than the size of the hydrogen market demand,” said Sandia’s Anna Snider Lord, the study’s principal investigator.

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Princeton University researchers have uncovered a previously unknown, and possibly substantial, source of the greenhouse gas methane to the Earth's atmosphere. After testing a sample of abandoned oil and natural gas wells in northwestern Pennsylvania, the researchers found that many of the old wells leaked substantial quantities of methane. 

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