Adding a charred biomass material called biochar to glacial soils can help reduce emissions of the greenhouse gases carbon dioxide and nitrous oxide, according to U.S. Department of Agriculture (USDA) scientists. Studies by scientists with USDA’s Agricultural Research Service (ARS) are providing
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bio energy
Top Ten Cleantech Highlights of Metso
written by Walter Wang
When most people look out on the hot, dry desert, they see the potential for a serious sunburn and probably a mirage or two. When Chilean entrepreneur Mario Llanis looks out on the cactus-riddled desert of his native country, he sees the possibility for a bio-energy source that could change the industry forever.
While policy momentum behind biofuels has sputtered in recent months due in part to a slumping economy, indirect land use change debates, and life cycle studies concluding that “green” fuels cause more greenhouse gas emissions than conventional fuels, using waste as a fuel feedstock represents a promising shortcut on the path to energy security.
Waste-to-fuel is nothing new, but it remains a vastly underdeveloped alternative despite being cheap, abundant, and according to the EPA, renewable. More recently, a convergence of environmental, economic, and energy factors have bolstered the development of increasingly innovative waste-to-energy solutions.