Tag: "emissions" at biology news
New plan to force greenhouse gases underground
...elaide University, Australia. Carbon dioxide (CO2) emissions
are not only caused by fuel consumption, they are ...cs (NCPGG) is investigating ways of removing those emissions
by injecting the CO2 back into the ground where it came from. The work puts Adelaide University at t...
Reducing primary chemical emissions does not always reduce pollution
...e into the formation of sulfate particles. These emissions
include sulfur dioxide, nitrogen oxides and volati...r oil. Nitrogen oxides come both from power plant emissions
and automobiles. A more difficult pollutant to control is volatile organic compounds, half of which...
One hour of grass cutting equals 100 miles worth of auto pollution
...erholm found that the worst case of lawn mower PAH emissions
totaled more than 4,000 micrograms per hour using ...leaded fuel without a catalytic converter. Average emissions
dropped to nearly 800 micrograms over the same time period with the addition of a catalytic converte...
New satellite study shows vegetation increases in North America
...equivalent of about half of the worlds fossil-fuel emissions
was absorbed by terrestrial vegetation in the Nort...ch abandonment of a campaign pledge to curtail CO2 emissions
by U.S. industry played a pivotal role in the April failure of the worlds nations to ratify the Kyot...
Duke experiment hints that not much extra carbon dioxide will be locked up in future forests' wood or soils
...2 expected from continued industrial and vehicular emissions
and other human activities will have on typical forest ecosystems. An initial ring of computer-controlled towers, later joined by another three, was designed to immerse 30-meter-in-diameter circles of pine forest in constantly regulated equivalents ...
Taming chaos? German scientists force checkerboard patterns from turbulence, suggesting better control strategies
...ng it possible to identify them. An image of these emissions
then revealed each of the system's chemical components, which appeared as brightly colored patterns. This type of imaging technology can't be used in real-world settings, where high pressures may interfere with electron emissions. But, Rotermund said...
Deregulation will cause significant fluctuations in electricity prices, new study reveals
...during the next decade as expected, carbon dioxide emissions
from U.S. power plants will increase by a slower a...o retard their growth. In contrast, sulfur dioxide emissions
are expected to decline over the decade, as generators try to meet federal SO2 caps imposed by Congr...
Science paper suggests strategy to more effectively control harmful ozone
... emission reduction programs "implicitly value all emissions
equally, regardless of emission density or locatio...ric utility power plants are a key source of NO x emissions
in the U.S., accounting for 25 percent of the nation's total human-produced NO x emissions
New technology reduces noxious emissions
...ossible. These reductions are critical to meeting emissions
requirements and fuel economy goals in diesel vehi... 80 miles on a gallon of gas while meeting reduced emissions
levels for nitrogen oxides, carbon dioxide and hydrocarbons. New hybrid, light-duty diesel engines,...
Researchers prove past cooling trend caused by move from forests to agriculture
...ally in the eastern United States. Greenhouse gas emissions
in the 20th century likely overcame any cooling trends that took place up to that time. Growing more trees has been suggested as a way to soak up carbon dioxide, a greenhouse gas, from the atmosphere. However, earlier studies demonstrate that growin...
Output from major platinum-group metals producer could increase
...onverters used to reduce pollution from automobile emissions
and are also used as catalysts in fuel cells. The future supply and price of PGM will affect the production and development of pollution reducing technologies," Levine noted. The price of palladium, which has increased sharply over the past severa...
Biodiversity increases ecosystems' ability to absorb CO2 and nitrogen
...f N deposition observed as a result of atmospheric emissions
in industrialized regions. At the end of both the 1998 and 1999 growing seasons, the scientists measured the total amount of plant matter (biomass) per square meter in each plot. Biomass is an indicator of carbon accumulated via photosynthesis, the p...
Scientists at The Scripps Research Institute develop a new 'kit' to screen mercury in fish
...tion occurs when mercury pollution from automobile emissions
or industrial waste washes into the ocean or groundwater. There, aquatic organisms convert normal mercury ions into methlymercury and release the compound into the water. Fish absorb it through their gills, or through their digestive tracts when the...
One change in farming makes for cleaner waterways
...esearcher compared pollutant emissions
in 1985 to those 10 years later for two watersheds that drain into the lake. He then compared those results to how farming practices changed in the area during the same time. Water q...
Controlling greenhouse gas carbon dioxide through carbon sequestration two-day symposium, April 2-3
... able to reduce further by significant amounts the emissions
of such fuels. Carbon sequestration may be a way t...otel, Grand Ballroom B.) It's a form of emissions
reduction - Capturing and sequestering carbon dioxide before it reaches the atmosphere complements ...
Berkeley chemical engineer wins national award for catalysis research
...catalysts that can eliminate nitric oxide from the emissions
of power plants and automobiles. New lean-burning vehicles, for example, pollute less per mile; the challenge, however, is that increased air in the mixture redirects the reaction toward consuming oxygen, not nitric oxide. A finely tuned catalyst can...
NASA satellite tracks hazardous smoke and smog partnership
...hompson added. Between July and November 1997, the emissions
from theIndonesian fires caused considerable air pollution throughoutthe Southeast Asian region, including Indonesia, Malaysia,and Singapore. Hazardous particles found in smoke caused air-quality and health problems throughout the region includingast...
A spread of a different kind
...fat, is not as useful, he added. Although airborne emissions
can travel great distances, butter is "an importan...tiveness of international measures to reduce their emissions
to the atmosphere."...
The enemy of my enemy is my friend
...ce the effect of herbivore-induced VOC emissions
and therefore not reflect the circumstances ... It illustrated that these VOC emissions
can have significant consequences in natural systems. Specifically we show that wild tob...
Volcano helps meteorologists find answer to climate change mystery
...and members of the European Union, to reduce their emissions
of greenhouse gases in coming years. Developing na...r in part because of disagreements over greenhouse emissions
reductions. Scientists believe greenhouse gases are increasing global temperatures by trapping the s...
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