Tag: "dioxide" at biology news
Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
...greenhouse gas, which is more powerful than carbon dioxide
in its ability to trap heat in the earths atmosphere. Turetsky said it seems the permafrost degradation initially causes increased soil carbon sequestration, rather than the large releases of carbon to the atmosphere originally predicted. But ove...
Carnegie Mellon's Peter Adams receives EPA research grant
...lectively account for 67 percent of all the sulfur dioxide
emissions in the U.S., which is a major precursor ...-fired power plants averaged 21.1 pounds of sulfur dioxide
per megawatt-hour, compared to only one pound per megawatt hour for plants equipped with state-of-th...
What we can learn from the biggest extinction in the history of Earth
...ed the coal and released vast quantities of carbon dioxide
and methane into the atmosphere. Rapid release of these greenhouse gases would have caused the oceans first to become acidic and then to become supersaturated with calcium carbonate. In the July Bulletin, Payne presents evidence that underwater lim...
Experiment suggests limitations to carbon dioxide 'tree banking'
... North Carolina pine tree stands with extra carbon dioxide
did allow the trees to grow more tissue, only thos...y decreases to plants at the same time that carbon dioxide
increases, then we might not have a net gain in carbon sequestration," said Oren, a professor of eco...
See what you're spewing as you speed along
...quencies; one detecting carbon monoxide and carbon dioxide
and the other detecting methane. The team measur...her key emissions such as nitrogen oxide, nitrogen dioxide
and specific hydrocarbons. ...
ASU researchers partner with UOP to make biofuel for military jets a reality
...riculture. Moreover, since algae can use carbon dioxide
from waste or flue gases as a nutrient for growth, an added value of algae feedstock production is environmental carbon sequestration. While algal oil is very similar to other vegetable oils in terms of fatty acid composition, the oil yield of alg...
Increase in creeping vines signals major shift in southern US forests
...ay possible mechanisms include increases in carbon dioxide
concentrations, which have been shown to increase vine growth more than tree growth. Many vines thrive on elevated levels of carbon dioxide, he said. Several studies suggest that vines like poison ivy benefit more than other plants from higher CO2 ...
The origin of perennial water-ice at the South Pole of Mars
...sentially three types: water-ice mixed with carbon dioxide
(CO2) ice, tens-of-kilometres-wide patches of water-ice, and deposits covered by a thin layer of CO2 ice. The discovery of the ice deposits of the first type confirms the long-standing hypothesis that CO2 acts as a cold-trap for water-ice. But how...
Changing climate will challenge Northeast agriculture, CU expert warns
...eeds, research shows, grow faster with more carbon dioxide
in the atmosphere. "On top of this, our study fou...urn off of stored soil carbon that releases carbon dioxide
into the atmosphere and using less nitrogen fertilizer, which produces nitrous oxide, a potent green...
Homestake strikes gold again
...of safely burying global warming gases like carbon dioxide
underground should also receive a significant boost. Said Joseph Wang, a scientist with Berkeley Labs Earth Sciences Division, and a senior Homestake proposal investigator, A flag-ship earth science experiment at SUSEL could involve geomicrobiolog...
Piecing together the cyanobacteria puzzle
...used stable isotope tracers in nitrogen and carbon dioxide
gases to track nitrogen and carbon fixation. After a few hours of incubation, vegetative cells exhibited a large enrichment in carbon and nitrogen isotopes because of active carbon and nitrogen uptake and intercellular exchange. During photosynthesi...
World Wildlife Fund warns against iron dumping experiment near the Galapagos Islands
...r and proven ways of preventing or lowering carbon dioxide
levels than dumping iron into the ocean, said Dr. Lara Hansen, chief scientist, WWF International Climate Change Program. This kind of experimentation with disregard for marine life and the lives of people who rely on the sea is unacceptable. Accor...
Scientists close in on missing carbon sink
...removing an unexpectedly high proportion of carbon dioxide
from the atmosphere, partially offsetting carbon e... The team found that some 40 percent of the carbon dioxide
assumed to be absorbed by northern forests is instead taken up in the tropics. "Our study will pro...
Northern forests less effective than tropical forests in reducing global warming
...removing an unexpectedly high proportion of carbon dioxide
from the atmosphere, thereby partially offsetting ... The team found that some 40 percent of the carbon dioxide
assumed to be absorbed by northern forests is instead being taken up in the tropics. "Our study wi...
Antarctic icebergs -- Hotspots of ocean life
...-floating icebergs can serve as a route for carbon dioxide
drawdown and sequestration of particulate carbon as it sinks into the deep sea, said oceanographer Ken Smith of the Monterey Bay Aquarium Research Institute (MBARI), first author and principal investigator for the research. While the melting of An...
UCF nanoparticle offers promise for treating glaucoma
...re occurs, in part, because of a buildup of carbon dioxide
inside the eye, and the compound blocks the enzyme that produces carbon dioxide. Seal and a team of collaborators including Sanku Mallik, of North Dakota State University, developed the research on using nanoparticles as a delivery mechanism for th...
Human activities increasing carbon sequestration in forests
...f 5-20 years when there is a net release of carbon dioxide
from forests to the atmosphere, instead of sequest...deposition is to some degree offsetting our carbon dioxide
emissions at least right now, she said. It was first recognized in the 1980s that human activitie...
Researchers examine carbon capture and storage to combat global warming
...ge, also called carbon sequestration, traps carbon dioxide
after it is produced and injects it underground. T...es for the technology, he said. Capturing carbon dioxide
from small, mobile sources, such as cars, would be more difficult, Orr said. But with power plants c...
Envisat captures first image of Sargassum from space
...ytoplankton and seaweed, absorb atmospheric carbon dioxide
through photosynthesis and convert it into organic carbon. By absorbing half of the carbon dioxide
emitted into the atmosphere, the oceans have a profound influence on climate, making them major area...
Washington University in St. Louis to invest $55 million for renewable energy research
...tant coal resources and efforts to mitigate carbon dioxide
accumulation, improve combustion processes and reduce emissions. I-CARES will operate under the direction of Himadri B. Pakrasi, Ph.D., the George William and Irene Koechig Freiberg professor of biology in Arts & Sciences, and professor of energy in ...
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