Tag: "greenhouse" at biology news
Changing Continental Runoff Patterns Could Change Ocean Circulation
...de from the atmosphere and sequester less of this greenhouse
gas in the oceans. "It appears that salinity in the Tethys Sea was the mechanism that switched deep water formation from the cold poles to the warmer subtropics," says Bice. "In a future, warmer Earth, human alterations to fresh water runoff a...
NCAR Scientist Models Earth's Climate and Vegetation Patterns At Last Glacial Peak
...s lower than now and atmospheric carbon dioxide (a greenhouse
gas) at just over half of today's levels. Felzer's...o today's plants in the next century as increasing greenhouse
gases warm the climate by several degrees. "The plants we see around us today had 21,000 years to ad...
Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms
... past 200,000 years and changing concentrations of greenhouse
gasses in the atmosphere. The drillers plan to halt at approximately 3650 meters depth, stopping above Lake Vostok, the subglacial lake beneath Vostok Station that is comparable in size to Lake Ontario. The lake and any life it may harbor have appa...
Urbanized Watersheds More Sensitive To Climate Change
...rty and human life if flooding occurs. "If the greenhouse
effect causes global warming, everyone is pretty confident that temperatures will increase, but how much precipitation will change is hotly debated," says De Walle. "We are interested in the effects of precipitation because it is the least reliabl...
Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool
...flect or absorb and emit heat. It's related to the greenhouse
effect thatmade life possible on Earth: incoming s... (The current climate debate is not over whether a greenhouse
effect is taking place, but whether it has become a "runawaygreenhouse," one that will heat beyond c...
Purdue-Made Soil Benefits The Environment
...ill allow vegetation to take hold there." Based on greenhouse
and lab tests at Purdue, the material is environmentally safe, Tishmack says, noting that coal ash is used in the construction of roads and embankments and that the industrial byproduct is used as a fertilizer on farms. The Indiana Department of Envi...
Fighting Wheat Scab In New York State
... promising microbial strains and assessing them in greenhouse
experiments for their ability to control a range o.... Bergstrom and da Luz report promising results in greenhouse
studies with bioprotectant bacteria sprayed on wheat heads before they sprayed the wheat heads with ...
Max-Planck Researchers Unravel The Structure Of The Methane Forming Enzyme
...cteria or escapes to the atmosphere as a potent greenhouse
gas. All methanogens are dependent on the enzyme methyl-CoM reductase, a protein complex of 300 kDa size. Its crystal structure was solved to a resolution of 1.45 E which represents the highest resolution for biological macromolecules of ...
Banning Chemicals To Protect Ozone May Aggravate Global Warming
... into reduced emissions of carbon dioxideand other greenhouse
gases from associated energy use, which, in net impact,dwarf those from incidental releases of the refrigerant itself," Wuebblessaid. "High efficiency also reduces fuel and other resource requirements. "It is probable that HCFC-123 and several othe...
Biogenic Emissions Higher Than Expected Over African Savanna
...on and in the atmospheric lifetime of methane -- a greenhouse
gas. Isoprene fluxes from the African forest are lower than those reported for a tropical rain forest in the Amazon basin. EXPRESSO gathered data during the dry season in November and December 1996 along a 800-kilometer (500-mile) band from the...
Guidelines For Next Generation Of Environmental Policy
...ooperation to curb environmentalpollutants such as greenhouse
gases. "For the next generation of environmentalpolicy, we must view our concerns not as singular rainstorms, but as weatherpatterns that effect the entire ecosystem," says Professor Esty, who has jointfaculty appointments in the Yale School of For...
GCTE/LUCC Open Science Conference:
.... increase in atmospheric carbon dioxide and other greenhouse
gases),changes in land-use cover under increasing human pressure and policy changes, and changes (often reduction) in biological diversity. Here are some of the key questions that the scientific community willre-examine: What will be the consequen...
Ameriflux Network Will Track CO2 Transfer In Forests
...eenhouse gases" from fossil fuel emissions. These greenhouse
gasestrap heat in Earth's atmosphere and prevent it from radiating back out intospace. Scientists also know that growing plants take in carbon dioxide duringphotosynthesis. What no one knows, however, is how much CO2 is stored in theworld's plants a...
Scientists Find Further Global Warming Evidence In Temperature Reconstruction Study
...udied. However, over the past few decades, greenhouse
gases produced by humanactivities appear to have had an increasing influence on temperatures. "Theanomalous warmth of several recent years appears likely to be related to humaninfluences on climate," said Mann. The study bears out concerns vo...
As A 'Carbon Sponge,' Iron-Poor Coastal Waters Can't Always Do The Job,
Like a sponge, the Earth's oceans store the greenhouse
gas, carbon dioxide--butcertain coastal waters can...osphere, though, allowingphytoplankton to use this greenhouse
gas in photosynthesis. And, when thesemarine organisms die, they either sink into deep water, thereb...
Environmental Testimony: Taiwan Mega-Complex Threatens Endangered Spoonbills And
Efforts To Cut Greenhouse Gases, UD Prof Says
...-faced spoonbill with extinction and will increase greenhouse
gasemissions, according to a University of Delawar...dustrial Complex also could increase that nation's greenhouse
gasemissions by at least 25 percent, Byrne testified. And, any developmentresulting in higher green...
Atmospheric Chemistry -- A Mysterious Isotope Effect In A Well-Known AtmosphericPollutant Discovered
...O, a major pollutant, and also of methane (CH4), a greenhouse
gas.Yet, OH belongs to the most elusive of all atmospheric species with a lifetimeof only one second. Nevertheless, the mass-independent fractionation in thereaction of CO with OH induces a clear isotope signal for the degree to which COhas been expo...
Yeast Rises To A New Occasion
...rned, ethanol produces far less air pollution and greenhouse
gases than gasoline. Currently, ethanol is produc...ean-burning, it also will reduce air pollution and greenhouse
gas emissions from cars." Ho and her colleagues in the Molecular Genetics Group at Purdue's L...
North America Absorbing Carbon Dioxide At Surprisingly High Rate, Team Reports
...could play a greater role than expectedin managing greenhouse
warming of the atmosphere. Carbon dioxide is one ofseveral gases implicated in greenhouse
warming. The findings of the research team, the Carbon Modeling Consortium( http://www.cmc.p...
Increase In Number Of Diesel Cars Is Counterproductive For Environmental Goals
... ofpetrol, emissions of carbon dioxide, which is a greenhouse
gas, are onlynegligibly less from dieselcars. An increase in diesel car sales from 1 to 20 per cent reduces carbondioxide emissions by amere 1-2 per cent. In terms of cancer risk, negative effects on respiratory passages and acutehealth problems, amo...
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