Tag: "carbon" at biology news
AAAS panel will focus on the impact of livestock production on the planet
...the livestock sector accounts for 9 percent of all carbon
dioxide emissions derived from human-related activities, as well as 37 percent of methane emissionsprimarily gas from the digestive system of cattle and other domesticated ruminantsand 65 percent of nitrous oxide gases, mostly from manure. The prob...
Scientists will discuss creating a culture of sustainability February 19 at AAAS
...d States and Japanhave generated 80 percent of the carbon
dioxide contributing to rapid climate change," Schneider said. "Yet a ton of carbon
emitted in Beijing does the same thing as a ton of carbon
produced in Boston or Brussels. If we are ...
ACS News Service Weekly PressPac -- February 14, 2007
...ed into a solution containing an iron compound and carbon
nanoparticles. Those sound waves create tiny bubbl...sonochemical process forms iron spheres around the carbon
nanoparticles. On exposure to air, the iron rapidly oxidizes, which burns away the carbon
Gene chips forecast ecological impacts of climate change
...s with the atmosphere and the role of the ocean in carbon
dioxide sequestration, marine ecosystems will expe...ence of the elevated levels of the greenhouse gas, carbon
dioxide, the predictions for ocean acidification are more problematic than temperature stress alone....
Computer program bridges gap between scientists, water policy makers
...Phoenix. These narratives take into account global carbon
emissions, temperature and rainfall changes, technology forecasts, energy consumption, and population and economic growth rates to produce an image of central Arizona's futureand the water needed to sustain it. Gober said that even though there is...
Cellulosic ethanol: Fuel of the future?
...rville said, noting that plants absorb atmospheric carbon
dioxide during photosynthesis, which compensates for the CO2 that is released when biofuels burn. Environmental costs Some environmentalists criticize the use of biofuels by arguing that planting large quantities of corn or grass to produce eth...
It's not easy being green
... greenhouse gas that is 300 times more potent than carbon
dioxide, into the environment. It's possible to minimize nitrous oxide emissions and significantly improve the greenhouse gas profile of ethanol, but we need to be aware of and deal squarely with this issue." Dale, who also is associate director of...
Orbiter provides new hints of past groundwater flows on Mars
...t that subsurface fluids -- probably water, liquid carbon
dioxide or a combination of the two -- once flowed abundantly in the western Candor Chasma region of Mars. Okubo will discuss the paper during a 15 February news briefing at the 2007 AAAS Annual Meeting in San Francisco. The briefing also will inc...
Nottingham scientist fights climate change
...ioneering work, which is developing ways of taking carbon
dioxide (CO2) out of the atmosphere, could play a ...ground. Carbon abatement technologies, including carbon
capture, storage and long-term utilisation of CO2, will play a vital role in revolutionising energy ...
NIH funds innovative alzheimer's research initiated at UCSB
...balls. Buckyball is the nickname for the versatile carbon
molecule known as C60, which scientists named buckminsterfullerene after American architect R. Buckminster Fuller, who designed geodesic domes in a soccer-ball shape. Our ion mobility and mass spectrometry methods provide a new way to attack the mole...
Bats prey on nocturnally migrating songbirds
...along food chains. The researchers concentrated on carbon
and nitrogen isotopes, which are among the best dietary tracers. They analysed their concentrations in bats' blood throughout the year, predicting major seasonal shifts in isotopic signatures towards bird prey in spring and, especially, during autumn...
Cold climate produced by algae contributed to onset of multicellular life
...ing to the new theory, the coldness was due to low carbon
dioxide concentration brought about by strong alga...d organic carbon, which slowed the rate of organic carbon
sequestration. This in turn increased the atmospheric carbon
dioxide level and ended the severe glac...
Smithsonian receives $8M HSBC grant
...tory system will compare climate change and forest carbon
data from 17 countries around the world. Located ...he hands of decision makers responsible for global carbon
policy and the water management of the Panama Canal," said Ira Rubinoff, director of STRI. HSBC Grou...
Cold storage solution for global warming?
... discovered two centuries ago, the possible use of carbon
dioxide hydrate as a means to help resolve problem...t of Ameena Camps' PhD project have indicated that carbon
dioxide hydrate should form stable structures in sediments under oceans. By employing geophysical t...
Human's ecological footprint in 2015 and Amazonia revealed
...orests can degrade key ecosystem services, such as carbon
storage in biomass and soils, the regulation of water balance and river flow, the modulation of regional climate patterns, and the amelioration of infectious diseases. ...
World's oldest rocks show how Earth may have dodged frozen fate of Mars
...vidence supporting this theory. The study shows carbon
dioxide in Earth's atmosphere could have sustained surface temperatures above freezing before 3.75 billion years ago according to the researchers, led by University of Chicago Assistant Professor Nicolas Dauphas. Co-authors on the study, which appea...
CESAR could hail cheaper and greener small aircraft
... to carry more passengers and therefore reduce the carbon
footprint of each traveller. Less mass would also mean less fuel burn and less carbon
dioxide being pumped into the atmosphere. Dr Schofield, who works in the Power Conversion Group wi...
Yale chemists show that nature could have used different protein building blocks
... composed of beta-amino acids, which have an extra carbon
in their backbone. Like alpha-amino acids, beta-amino acids are generated under simulated pre-biotic conditions, are isolated from meteorites, and are byproducts of metabolism, but they are not genetically encoded like natural proteins, nor are they...
Climate change only one symptom of a stressed planet Earth
...nd in particular stresses the fact that additional carbon
released from the biosphere in a warmer climate wi...ls used in the AR4 projections now include dynamic carbon
cycling. Over the next few years these models will include, for example, ever more complex dynamic l...
Energy institute will put Illinois at forefront of farm bioenergy production
...onverting heavy hydrocarbons to cleaner fuels) and carbon
sequestration (removing or preventing increases in atmospheric carbon), socio-economic systems (social and economic issues related to these new technologies) and biofuels production. Discovery and development research centers at each site will suppor...
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