Tag: "gases" at biology news
New evidence indicates huge vegetation loss accompanied mass extinction
...r the overturning of the oceans to release trapped gases
into the atmosphere. In their research, paid for by a National Science Foundation grant, Ward, Montgomery and Smith do not speculate which, if any, of the theories is correct. But they say that the way plant life disappeared indicates events happened...
150-year global ice record reveals major warming trend
...esults do not offer specific proof that greenhouse gases
are driving the warming trend. However, the findin...veloped to estimate climate change from greenhouse gases
over a 125-year time period, he says. The findings also correspond to an air temperature increase of...
Tiny sampling device promises big results for detection and analysis of chemicals
...traditional preconcentrator used to collect sample gases
for analysis. The active area of the device is only two millimeters by two millimeters. Already part of Sandia's initiative to build a hand-held "chemistry laboratory," it potentially can be integrated with other micro chemical detectors, includi...
INEEL creates a method to link energy use, greenhouse gases
...standing how to mitigate the effects of greenhouse gases
on our environment, engineers have created a metho...o carbon dioxide, methane, nitrous oxide and other gases
that are thought to trap solar energy and cause changes to the world's environment. The gases
Dogs have a nose for it
...ue called Schlieren photography, which records how gases
of different temperatures refract light, the researchers obtained images showing the air currents produced by the noses of the sniffing dogs. They found that a dog's astounding olfactory success comes partly from its ability to divert exhaled air aw...
Simple and inexpensive, an artificial nose senses smell by seeing colors
...illegal drugs, environmental pollutants, poisonous gases
or deadly toxins simply by changing color. As reported in the Aug. 17 issue of the journal Nature, chemists Kenneth Suslick and Neal Rakow at the University of Illinois have developed an artificial nose that is simple, fast and inexpensive and works...
Catalytic converters fix one pollution problem, cause another
...ss hydrocarbons, carbon monoxide and other harmful gases
than cars in earlier studies. The researchers note, however, that the current study included more vehicles with state-of-the-art pollution controls - catalytic converters used with low-sulfur reformulated gasoline - than previous studies. "Catalyt...
Fuel cell research center to develop and test new technologies
... electrochemical membrane devices that clean fuel, gases
and other substances; (4) enabling technologies for compact, small-scale or micro proton exchange membrane fuel cells; (5) development of an advanced room-temperature, sodium-based battery for high power and energy density; (6) development of new ele...
UW team to examine effects of change in southern Africa on air pollution
... west, out over the southern Atlantic Ocean. Trace gases
and suspended particles, or aerosols, are pumped into that rotation from three primary sources: fossil-fuel burning and other industrial activities; agricultural fires, wildfires and domestic hearth fires; and natural processes. In recent years the r...
Stanford study supports novel rainforest protection plan
...gasoline-burning vehicles. Accumulation of these gases
in the air prevents solar heat from escaping the a...ecide how to set the rules for cutting back on the gases
that cause global warming," notes Kremen. "Yet a number of countries want to leave forests out of th...
Arctic ozone depletion linked to longevity of polar stratospheric clouds, according to studies
...earlier and persist longer, said Toon. Greenhouse gases
may be radiating energy and heat away from the upp... the winter of 1995-96, said Toon. If greenhouses gases
warming Earth's atmosphere are shown to be the culprit in lengthening the amount of time the polar s...
UI biologist receives grant to study acoustic management of swine odor
... facilities has resulted in the release of noxious gases
from decomposing animal wastes contained in deep p...ertilizer. "Most current methods to control these gases
involve odor masking agents or simply covering storage facilities to reduce gas emission," Soll says...
DFG to launch 21 new priority programmes
...le new mathematically based algorithms. Ultra-cold gases
are characterised by a very low temperature, low d...ve a porous microstructure. In the course of time, gases
and liquids can penetrate the mineral substance and damage or even destroy the material through phys...
Carbon diem: Grants awarded to research that seizes excess carbon dioxide
... to mix in with the air. Sequestering greenhouse gases
might reduce their impact on global warming. "If f...a new way -- the vortex tube. Used for separating gases
based on the size of their molecules, a vortex tube spins gas at a high centrifugal force -- this ca...
Mountains of variables: The effect of landscape features on atmospheric deposition
...red through rain, snow, cloud, fog, rime ice or as gases
and dry particles. Because gathering data from mountains can be expensive and difficult, measurements of atmospheric deposition are often made from single points, such as towers at the tops of mountains. But a new study published this month revea...
UC Irvine researchers discover how airborne sea salt particles may influence air pollution levels
...helping to determine the levels of some greenhouse gases
as well as air quality in coastal urban areas. In ...ken into account in assessing levels of greenhouse gases
and air pollutants such as ozone in the air." In this study, UCI researchers observed the reaction o...
Aerosol pollutants in atmosphere likely masking global warming
...reenhouse warming, Toon said. Unlike greenhouse gases
-- which stay in the atmosphere for long periods a...rming effect creating by humans pumping greenhouse gases
into the atmosphere during the last century," said Toon, also a professor in CU-Boulder's Program fo...
Study: Methane cleans nitric oxide from power plant emissions
...oxide emissions from the stack gases
of coal-burning power plants. ...ent of nitric oxide from stack gases
in a safer and less expensive way than any currently available. ...
Record breaking temperatures seen as evidence of faster rate of global warming
...iven the steady increase in atmospheric greenhouse gases
and the length of time, ranging from decades to centuries, that they remain in the atmosphere, they urge that studies be conducted to enable society to minimize the risks of climate change and prepare for more, and perhaps even more rapid, changes to...
Scientist find clues to different warming rates
..., and the influx of sulfate aerosols andgreenhouse gases
into the atmosphere--may help explain why the lowe...el alsotook into account the buildup of greenhouse gases
and sulfateaerosols. Says Wigley, "This is a very complex problem with large uncertaintiesin the eff...
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