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Reducing ammonia pollution from cattle
Agriculture is responsible for 90% of all ammonia pollution in Europe, a considerable part of which comes from cattle manure management: a new study shows what steps to take to reduce this pollution.Improved barn design, cleaning processes, and manure treatment could reduce ammonia emissions from commercial dairy cattle barns by 17 to 50%, according to a…
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Discovery of Carbon Storage Signaling Mechanism in Algae Offers New Potential for Sustainable Biofuel Production
James Umen, Ph.D., associate member at Donald Danforth Plant Science Center, and colleagues have discovered a way to make algae better oil producers without sacrificing growth. The findings were published September 6, in a paper titled, “Synergism between inositol polyphosphates and TOR kinase signaling in nutrient sensing, growth control and lipid metabolism in Chlamydomonas,” in The…
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MIT to neutralize 17 percent of carbon emissions through purchase of solar energy
MIT, Boston Medical Center, and Post Office Square Redevelopment Corporation have formed an alliance to buy electricity from a large new solar power installation, adding carbon-free energy to the grid and demonstrating a partnership model for other organizations in climate-change mitigation efforts.The agreement will enable the construction of a roughly 650-acre, 60-megawatt solar farm on…
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Unraveling the Science Behind Biomass Breakdown
Lignocellulosic biomass—plant matter such as cornstalks, straw, and woody plants—is a sustainable source for production of bio-based fuels and chemicals. However, the deconstruction of biomass is one of the most complex processes in bioenergy technologies. Although researchers at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) had already uncovered information about how woody plants and…
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Researchers use 'robomussels' to monitor climate change
Tiny robots have been helping researchers study how climate change affects biodiversity. Developed by Northeastern University scientist Brian Helmuth, the “robomussels” have the shape, size, and color of actual mussels, with miniature built-in sensors that track temperatures inside the mussel beds.
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Modeling Floods That Formed Canyons on Earth and Mars
Geomorphologists who study Earth’s surface features and the processes that formed them have long been interested in how floods, in particular catastrophic outbursts that occur when a glacial lake ice dam bursts, for example, can change a planet’s surface, not only on Earth but on Mars. Now geoscience researchers Isaac Larsen at the University of Massachusetts…
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Salty snow could affect air pollution in the Arctic
In pictures, the Arctic appears pristine and timeless with its barren lands and icy landscape. In reality, the area is rapidly changing. Scientists are working to understand the chemistry behind these changes to better predict what could happen to the region in the future. One team reports in ACS’ Journal of Physical Chemistry A that sea salt…
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Scientists creating super grass to cut methane emissions from cows
Danish scientists are developing a grass that will cut down how often cows burp and pass gas — reducing the amount of methane, a potent greenhouse gas, they release into the atmosphere.
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Stanford researchers capture Central Asia's 'de-greening' over millions of years into a modern-day desert
A new study chronicles how central Asia dried out over the last 23 million years into one of the most arid regions on the planet. The findings illustrate the dramatic climatic shifts wrought by the ponderous rise of new mountain ranges over geologic time.Researchers have long cited the uplift of the Tibetan Plateau and the Himalayan Mountains…
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Wave energy researchers dive deep to advance clean energy source
One of the biggest untapped clean energy sources on the planet — wave energy — could one day power millions of homes across the U.S. But more than a century after the first tests of the power of ocean waves, it is still one of the hardest energy sources to capture.