Tag: "gases" at biology news
New satellite study shows vegetation increases in North America
... increasing C02 and other heat-trapping greenhouse gases
released into the atmosphere as a result of human activity have contributed to climate warming over the past century, he said. The U.S. regions where vegetation productivity showed the largest increases in the new study were managed forests in the...
LSU researcher finds new petroleum method, receives patent
...ies, and no net increase of atmospheric greenhouse gases
is involved in the process," he said. Dr. Thomas Klei, associate dean of research and advanced studies in the LSU School of Veterinary Medicine said, "We are very excited about the potential of Dr. Catallo's discovery. These types of research effort...
Increased use of chemicals in agriculture worldwide seen as major environmental threat
... next 50 years, rivaling the effect of greenhouse gases
in its impact, according to a new study published in this week's journal Science. "The global impact of agriculture will be at least as great as climate change," said lead author David Tilman, visiting researcher at the National Center for Env...
Chemistry of life in outer space is topic of two-day symposium, April 4-5
...early Earth was replete with water and atmospheric gases
such as hydrogen, methane and ammonia, much as Jup... and dust from comets and asteroids brought water, gases
and even organic compounds such as amino acids to Earth. These extraterrestrial hitchhikers may have...
Hitchhiking molecules could have survived fiery comet collisions with Earth, UC Berkeley experiment shows
...lectrical discharges in an atmosphere replete with gases
such as methane, hydrogen, ammonia and water. The famous Miller-Urey experiment in 1953, conducted by Stanley Miller and Harold Urey of the University of Chicago, demonstrated that a lightening-like discharge in a test tube filled with these molecule...
Global warming: Science, economics, politics
...las School of Environment, will discuss greenhouse gases
and the carbon cycle. The conference, sponsored by Texas A&Ms Department of Economics and the Bush School of Government and Public Service, will be held at the Presidential Conference Center on the Texas A&M campus....
Controlling greenhouse gas carbon dioxide through carbon sequestration two-day symposium, April 2-3
...ty. CO2, one of the so-called greenhouse gases
blamed for climate change, can be stored in the ocean, coal seams too deep to mine, and underground oil and gas reservoirs. Over the longer term, it may be possible to turn CO2, into natural gas and carbonate rocks - rocks that are chemical or bioch...
Allentown chemist wins national award for catalysis research
...Armor's projects have included the purification of gases
and the production of such industrial building blocks such as hydrogen and nylon. "For a number of years, we at Air Products worked on a project to remove oxides of nitrogen, or NOx - that's the brown haze you can see in smog," he said. "Our proces...
Stowaways from space provide link between impact, biggest extinction in Earth history
...measurements of different forms or isotopes of the gases
locked within the carbon cages, the scientists det... template or skeleton for other molecules, and the gases
they carried to Earth might somehow make up part of our atmosphere....
Volcano helps meteorologists find answer to climate change mystery
...ean Union, to reduce their emissions of greenhouse gases
in coming years. Developing nations such as China ...missions reductions. Scientists believe greenhouse gases
are increasing global temperatures by trapping the sun's heat; some scientists predict global warmin...
Microbial activity key component of global environmental change
...cant role in slowing adverse effects of greenhouse gases
and other global environmental changes, according ...change include producing and consuming atmospheric gases
that affect climate; mobilizing toxic elements such as mercury, arsenic and selenium; and producing ...
New study reveals a major cause of global warming - ordinary soot
...me for global warming on human-produced greenhouse gases
such as carbon dioxide and methane, which also are byproducts of fossil fuel burning. But according to IPCC scientists, atmospheric soot has relatively little effect on world climate. Jacobson disagrees. ``Only a handful of studies have considered ...
Scientist searches Yellowstone Park for carbon dioxide-eating microbe
...prings. "They must be thermotolerant because the gases
from these coal-fired power plants--which are abou...rcent carbon dioxide--are hot," Cooksey said. "The gases
have been through the scrubbers to get rid of the ash, but they still have lots of CO2." Is it like...
Atmospheric chemistry key to global and local air pollution
...egacities and biomass burning, including precursor gases
to hydrogen oxides such as acetone and formaldehyde, lofted into the upper troposphere, can become the dominant hydrogen oxide source and result in efficient ozone production," says Dr. William Brune, professor of meteorology and head of Penn State's...
2000 FALL MEETING: updated press conferences, press registration, and other information
...rtant source of atmospheric trace gases. Smoke and gases
released by fires in the boreal region are having an impact on the composition of the atmosphere. Fires have important effects on the ecology of boreal forest. They are critical in providing wildlife habitat and subsistence resources and in rejuvenat...
Unprecedented fire season in southern Africa aids air quality, climate change research
... have now of carbon transport in the haze, both as gases
and particles, will add important pieces to balancing global carbon budgets." Studies by research aircraft flying inside the pall of haze revealed several surprises. Aircraft encountered puzzling layers of extremely clean air sandwiched between ...
Analysis of Martian meteorite using unique magnetic microscope
...s of liquid nitrogen and liquid helium. The liquid gases
are used to keep the critical electronic components at a frigid five degrees above absolute zero. The heart of the microscope is a SQUID, or superconducting quantum interference device. When cooled to extremely low temperatures, this bit of micr...
November GEOLOGY and GSA TODAY highlights
...ed oil gone? High concentrations of greenhouse gases
and polar stratospheric clouds: A possible solution to high-latitude faunal migration at the latest Paleocene thermal maximum. Robert B. Peters and Lisa Cirbus Sloan This paper documents a climate modeling study that investigates the role of high c...
October Geology and GSA Today highlights
... of the composition and emission rates of volcanic gases
are crucial to interpret and understand volcanic a...n severe environmental degradation downwind as the gases
reach the ground. It is also situated close to the Nicaraguan capital and has a prehistoric record o...
New IIASA research challenges Kyoto Protocol
...it in Rio in 1992 as the way to control greenhouse gases
and curb global warming. The Kyoto Protocol calls...l between the years 2008 and 2012 - in greenhouse gases
that are caused in large part by the use of fossil fuels and destruction of vegetation. Since reduc...
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