Tag: "emissions" at biology news
Efficient plastic nuggets key to agricultural plastic waste disposal
...n tube in the process because of the potential for emissions
problems," says Garthe. Burning the nuggets along with coal probably produces few emissions
as the temperatures of 1,500 to 2,000 degrees Fahrenheit allow for more complete combustion. Plasti...
New computer model promises detailed picture of worldwide climate
...p Experiment," which will track fossil fuel carbon emissions
as they are dissolved in the oceans and subsequently released back into the atmosphere. Jeffrey Kiehl, a key leader in development of the model at the National Center for Atmospheric Research, expects the CCSM-2 to play an integral role in the next c...
Preserving options: Short-term action required to avoid long-term climate damage
...l require substantial reductions in greenhouse gas emissions
by 2010, consistent with those required by the Kyo...anges are so disruptive that avoiding them through emissions
reduction is the only sensible alternative. "Some have argued that the Kyoto Protocol would have lit...
Hot polymer catches carbon dioxide better
... lead to a significant reduction in greenhouse-gas emissions
to the atmosphere. Scientists at the Department of...ximately 30 percent of human-caused carbon dioxide emissions
are a result of power-producing industries. At the American Geophysical Union conference today in W...
Story tips from the Department of Energys Oak Ridge National Laboratory, May 2002
...d at ORNL and licensed to Ecotera, also boasts low emissions
and quiet operation, making it ideal for a wide ra... lead to greater energy security, lower greenhouse emissions
and a cleaner environment, according to researchers at ORNL and the University of Tennessee. With a ...
May media highlights: GEOLOGY and GSA TODAY
...roduce, or escape predators. Are industrial SO2 emissions
reducing CO2 uptake by the boreal forest? Martine Savard, et al., Natural Resources Canada, Geological Survey of Canada, GSC-Quebec, Sainte-Foy G1S 2L2, Quebec, Canada. Pages 403-406. It was previously proposed that boreal forests accommodate increa...
Imagine no restrictions on fossil-fuel usage and no global warming
...lity that could extract all current carbon dioxide emissions
would require only an area of one square yard per person in the developed world. A facility of sufficient size could be located in arid regions, since discharged air that is deficient in carbon dioxide could have consequences on nearby plant life. ...
Wood adhesive is good, but could be better
...include formaldehyde, so there are no formaldehyde emissions
from the final product. Although it is an oil-based adhesive, it is still enviornmentally efficient, since it makes up less than 8 percent of the final composite product, and often less than 3 percent. However, polymeric isocyanate performs differen...
Salem, Virginia chemist wins national award for environmental work
...eveloping catalytic converters to reduce pollutant emissions
from automobiles and other contributions to environmental science over the course of his career. He will receive the 2002 E.V. Murphree Award in Industrial and Engineering Chemistry from the American Chemical Society at its national meeting in Orland...
Hurricanes impact carbon sequestration by forests
...ing to be one of the mechanisms used to reduce net emissions
of carbon dioxide in the United States, said McNulty, "incentives to increase post-hurricane timber salvage need to be addressed. Hurricanes remove the most mature trees, allowing the younger trees in the forest understory more active in absorbing a...
'Mercury sunrise' phenomenon found in Antarctica
...e last few decades, even though global atmospheric emissions
of mercury have declined during the last 20 years. The Alaska study also shows that some of the mercury has the potential to be transformed by bacteria, an indication that this mercury may enter polar food webs. The mercury sunrise depends on ultrav...
Fusion in a flash?
...ning deuterium atoms--produces tritium and nuclear emissions
similar to emissions
characteristic of nuclear fusion involving deuterium-deuterium reactions. This finding was reported ...
Signs of recovery in Adirondack lakes apparent, say researchers
...Air Act, a federal mandate to significantly reduce emissions
that cause acidification, says Nierzwicki-Bauer. More research is needed to pinpoint the exact reasons for the apparent changes seen in the lakes in the southwestern part of the Adirondack Park, an area hardest hit by acid rain. "Recovery doesn't h...
Engineers develop odour eaters for pulp mills
... out the smell. "All industrial processes have air emissions
and, in the case of pulp and paper mills, the smell can be quite overwhelming. This biofilter operates like a mini ecosystem. It's a microbial community that degrades the pollutant and breaks down the compounds which cause the odour." The filter - co...
Ancient supernova may have triggered eco-catastrophe
...ts on Earth, says Bentez. He found that cosmic ray emissions
from a supernova could have had a potentially deva...of the atmosphere that absorbs harmful ultraviolet emissions
from the sun and other sources. This would have produced a significant reduction in phytoplankton ab...
Science's Top Ten: nanoscale computing circuits named top scientific advance of 2001
...sink that absorbs around one-third of current U.S. emissions
but may show signs of slowing within the next century. Science After September 11: The international science and engineering community faces a "sobering new era" after the September 11 terrorist attacks on the United States, challenged by shrinking...
Antarctic mud reveals ancient evidence of global climate change
...g up primarily because of increased greenhouse gas emissions
from cars, power plants and other human endeavors elsewhere on the planet. But new geologic evidence unearthed from deep-sea mud deposits strongly suggests that Antarctica experienced periods of extreme warming and cooling long before the invention o...
Climate change could boost cotton yields
...O2) in theatmosphere on cotton crop yields. If CO2 emissions
increase at theirpresent rate, many scientists believe that the atmosphericconcentrations of greenhouse gases are likely to double compared topre-industrial levels by the year 2060. Along with climate change, atmospheric CO2 enhances plant growth bys...
Assaulting the mosquitos sense of smell
...oes are primarily attracted by body odor and other emissions
such as carbon dioxide. We all produce a cloud of chemicals and mosquitoes can track the odor trail that we leave for quite a distance, says Zwiebel. Many of these chemical cues are created by the bacteria that cover our bodies. Studies have shown th...
INEEL uses ethanol to reduce petroleum consumption, cut exhaust emissions
...etroleum consumption and helping the INEEL cut air emissions
without additional fuel costs. Since June, the INEEL has purchased about 63,500 gallons of E10, a blend of 10 percent ethanol and 90 percent gasoline. Site drivers and mechanics haven't seen any changes in performance or maintenance needs of vehicles...
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