Tag: "clouds" at biology news
Hitchhiking molecules could have survived fiery comet collisions with Earth, UC Berkeley experiment shows
...y kinds of organic molecules in space, floating in clouds
of gas or bound up in dust particles. They range from the simplest - water, ammonia, methane, hydrogen cyanide and alcohols, including ethyl alcohol - to more complex molecules, including chains of up to eight carbon atoms. Interestingly, of the more...
Pasadena chemist wins national award for environmental research
...y, Pasadena, began his career studying the role of clouds
in processing compounds in the atmosphere. "Until then, clouds
had really been ignored as possible sites for chemical reactions," he said. Hoffmann's insights into...
Scientists, ships, aircraft to profile Asian pollution and dust
...ance and global climate. Theimpact of aerosols and clouds
on climate has eluded modelers' bestefforts, partly because of a lack of data. Desert dust complicatesthe problem because it can both cool the earth by scattering sunlightback to space and also warm it by absorbing solar and infraredradiation. Among ...
Volcanic ash detector boosts air safety
...ld's first detector to warn pilots of volcanic ash clouds
in their flight paths. In the past 30 years, more than 90 jet aircraft have encountered ash clouds
emitted from erupting volcanoes. Ash clouds
are almost invisible to radar. Silicon compounds with...
Atmospheric chemistry key to global and local air pollution
...are more easily scavenged and removed by aerosols, clouds
and rain," Brune told attendees today (Jan. 15) at the annual meeting of the American Meteorological Society in Albuquerque, N.M. "But in the oxidation process, hydroperoxyl radicals form and combined with the industrial pollutant nitric oxide produ...
New views of tropical thunderstorms and pollution effects on rainfall presented at AGU meeting
... panelists will discuss how TRMM has revealed that clouds
over tropical land areas sometimes take on charact...development. During the middle of the rainy season clouds
over the Amazon often behave as if they were over the open tropical oceans. He said, "Typically with...
November GEOLOGY and GSA TODAY highlights
...gh concentrations of atmospheric methane and polar clouds
in explaining the high-latitude faunal migrations that occurred approximately 55 million years ago. The model results indicate that such high-latitude migrations, which would have required year-round above-freezing conditions for many years, may have...
Turning down the Sun
... latitudes as additional water evaporated into the clouds
near the equator. But when it came to the geoengineered planet, the researchers got a shock. This world looked very much like the control model. Only about 15 per cent of the planet's surface was significantly warmer or colder than the control, co...
UW team to examine effects of change in southern Africa on air pollution
...d plane in the world for studying aerosols, gases, clouds
and radiation," Hobbs said. About 15 UW faculty, s...d as a means of verifying satellite data measuring clouds
in the atmosphere over the Marshall Islands in the South Pacific Ocean. Next winter it will be used ...
June 'Geology' and 'GSA Today' highlights
.... Because DMS aerosols serve as sites around which clouds
can develop, the production of DMS provides a direct link between climate and marine phytoplankton productivity. The study demonstrates that high DMS production is correlated with glaciated periods. The authors conclude that equatorial regions help t...
Arctic ozone depletion linked to longevity of polar stratospheric clouds, according to studies
...spheric science campaign. The ozone-destroying clouds
are made of ice and nitric acid, said University o...Europe, Russia and Japan. Polar stratospheric clouds
generally form about 13 miles above the poles when temperatures drop to minus 110 degrees Fahrenheit...
Spring meeting press conferences
... Arctic earlier this year was the ozone-destroying clouds
that form in the stratosphere each winter. A recent international research campaign in Sweden, which peered inside these "polar stratospheric clouds" in unprecedented detail, found that they were much more widespread and long-lasting than predicted. ...
Environmental issues fail to capture national interest, says Temple University professor on eve of 30th Earth Day celebration
April 22, 1970 -- As pollution clouds
over many of the nation's larger cities and the California coast continues to feel the effects of the 1969 Santa Barbara oil spill, tens of thousands of people rally for the environment in Philadelphia's Fairmount Park, giving birth to what has becom...
Aerosol pollutants in atmosphere likely masking global warming
...in understanding the interplay between pollutants, clouds
and greenhouse warming, said University of Colorad...articulates from urban and industrial areas modify clouds
over large land areas, suppress rain and snow and are responsible for reflecting significant of amou...
Feeding the world by cleaning the air: study ties heavy regional haze to reductions in China's crop production
...t potentially caused by haze interacting with clouds
or the toxic effects of air pollutants that also reduce crop growth. Extensive studies by agricultural researchers have documented the relationship between crop production and the sunlight received. The haze affecting China is made ...
China now leads world in sulfur emissions, study shows
...dic, cleaner skies in the Western hemisphere. The clouds
now loom over the East."The same cycle that characterized the industrial areas of North America and Europe in the '70s and '80s is well under way in Asia now, particularly mainland China," Husar points out. "The Asian countries realize something mus...
Spacecraft provides first direct evidence: Smoke in the atmosphere inhibits rainfall
... rain" processes that often create rain intropical clouds
are practically shut off when the clouds
are polluted with heavysmoke from forest fires. In these clouds, scientists found, the cloud tops mu...
Ancient viruses lurking in polar ice
... of New York in Syracuse had earlier found ToMV in clouds
and fog. Thevirus can survive in such environments because it belongs to a family withparticularly tough protein coats. "Since it's widespread, moves in theatmosphere and is very stable, we deduced that we would find it in the Arcticice," says Rogers...
Ship sulfur emissions found to strongly impact worldwide ocean and coastal pollution
...es to form clouds.The interactions of aerosols and clouds
have been identified as one of the mostimportant u... rate of climate change, or globalwarming, because clouds
reflect energy and thereby reduce the net warming effectof long-lived greenhouse gases." "Si...
Smog impacts: Hurtling through airways, tiny particles may do more damage than previously assumed
...icroscope. Yet, clusters of fine particles produce clouds
of dust, black sootand gray haze. And, when ground-level ozone mixes with air pollution, chokingsmog can blanket U.S. cities, reducing visibility by 70 percent in some regions,the EPA reports. "Tens of thousands of elderly people die prematurely each...
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