Synopsis:
2.0.. agro: Acid rain:
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acid rain poisoned rivers, lakes and soils, eroded buildings and monuments; refrigerant chemicals ate away at the protective ozone layer;
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Throughout the Reagan years he actively campaigned for legislation to fight acid rain protect endangered species and support higher automotive fuel standards.
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It also has provisions to address problems such as acid rain. Before its implementation the Appalachians were a bull's-eye for acid pollution due to a large number of power plants along the Ohio Valley Thomas said.
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#Dinosaur-Killing Asteroid Triggered Lethal Acid rain The oceans soured into a deadly sulfuric-acid stew after the huge asteroid impact that wiped out the dinosaurs a new study suggests.
Once in the air the sulfur would have transformed rapidly into sulfuric acid generating massive amounts of acid rain within a few days of the impact according to the study published today (March 9) in the journal Nature Geoscience.
The Chicxulub impact devastated the Earth with more than just acid rain. Other killer effects included tsunamis a global firestorm and soot from burning plants.
whether the impact would have produced enough global acid rain to account for the worldwide extinction of marine life.
which tends to hang out in the atmosphere instead of forming aerosols that become acid rain Lead author Sohsuke Ohno of the Chiba Institute of technology in Japan
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but created acid rain. Up this hi it will be even more effective and last even longer while at the same time create little contribution to acid rain.
If Global warming really is controlled an issue targeted sulfur emission is part of the solution because it buys us time for other solutions to reach viability.
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the same tired play from the same special-interest playbook they ve used for decades such as the creation of smog-reducing regulations in the 1960s or curbs on pollutants causing acid rain in the 1990s.
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Mineral is key to restoring acid rain-damaged forestscalcium can do much more than strengthen bones. The mineral is a critical nutrient for healthy tree growth
and new research shows that adding it to the soil helps reverse the decades-long decline of forests ailing from the effects of acid rain.
The paper published Sept. 19 in the journal Environmental science and Technology (EST) Letters and led by John Battles professor of forest ecology at the University of California Berkeley also presents strong evidence that acid rain
It is accepted generally that acid rain harms trees but the value of our study is that it proves the causal link between the chronic loss of soil calcium caused by decades of acid rain
and its impact on tree growth said Battles. The temporal and spatial scope of the study--15 years and entire watersheds--is unique
Acid rain forms when sulfur dioxide and nitrogen oxides--gases produced from the burning of fossil fuels--react with water molecules in the air.
The mountainous regions in the Northeast have thin soils that are already acidic so they have limited ability to withstand the assaults of nutrient-dissolving acid rain.
Moreover watersheds along the eastern corridor of the United states had been exposed to more acid rain because of the greater number of coal-burning power plants in the region.
The Clean Air Act of 1970 significantly reduced sulfur dioxide emissions but decades of acid rain already had changed the soil chemistry of many sensitive regions including the White Mountains of New hampshire
and with our study's clear evidence that acid rain is hurting forests other countries will hopefully be motivated to intervene sooner by implementing air pollution standards to reduce emissions said Battles.
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improving forestsa collaborative project involving a Kansas State university ecologist has shown that the Clean Air Act has helped forest systems recover from decades of sulfur pollution and acid rain.
The researchers wanted to better understand the trees'physiological response and the growth response to long-term acid deposition or acid rain.
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In the 1970s red spruce was the forest equivalent of a canary in the coal mine signaling that acid rain was damaging forests
In the course of studying the lingering effects of acid rain and whether trees stored less carbon
when foliage predisposed to injury by exposure to acid rain experiences freezing injury and dies. Paul Schaberg a research plant physiologist with the U s. Forest Service's Northern Research Station in Burlington Vt. and partners studied red spruce trees in Vermont New hampshire and Massachusetts.
Forest Service science was at the forefront in identifying acid rain and its impacts and it is enormously gratifying to be at the forefront of discovering this amazing turn-around in red spruce growth in New england said Michael T. Rains Director of the Northern Research Station and the Forest Product Laboratory.
While it remains a major commercial species in Canada in the United states acid rain and land use changes have resulted in the loss of many red spruce trees.
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The researchers hypothesize that acid rain a by-product of fossil fuel burning acidic mining runoff and agricultural fertilizers speed up the dissolving of surfaces that are naturally high in alkaline minerals.
I did not expect that said noted ecologist Gene Likens a co-discoverer of acid rain in 1963 who collaborated with Kaushal on this research.
Policymakers and the public think acid rain has gone away but it has not. Beginning in the mid-1990s after Congress amended the Clean Air Act new federal regulations have reduced the airborne pollutants that cause acid rain.
It may be that these are legacy impacts of acid rain in addition to mining and land use Kaushal said.
The acid rain problem is decreasing. But meanwhile there are these lagging effects of river alkalinization showing up across a major region of the U s. How many decades will river alkalinization persist?
We really don't know the answer. The team focused on Eastern rivers which are often important drinking water sources for densely populated areas
and acid rain from smokestack industries have had a major impact on forests and streams. Water alkalinity has increased the fastest in areas underlain by carbonate rocks at high elevations
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Some of the characters involved have worked previously to deny the reality of the hole in the ozone layer acid rain and the link between tobacco and lung cancer.
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#Environmental policies matter for growing megacitiesa new study shows clean-air regulations have reduced dramatically acid rain in the United states Europe Japan
and 1990 amendments addressed issues including acid rain. Similar steps in the European union Japan and South korea over the past three decades have reduced nitrate
and sulfate in rain--components contributing to acid rain said Suresh Rao Lee A. Reith Distinguished Professor of Civil engineering and Agronomy at Purdue University.
The effects of acid rain can propagate through aquatic ecosystems such as lakes rivers and wetlands and terrestrial ecosystems including forests
Fast-growing cities in East asia that lack regulations or enforcement show a dramatic rise in acid rain according to the new study completed by Purdue researchers Our analysis of wet deposition (acid rain) data provides compelling evidence
what comes down as acid rain also is much smaller. Every car now has a catalytic converter that reduces tailpipe emissions.
In essence we've solved the acid rain problem through good environmental regulations and wide adoption of mitigation technologies.
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Acid rain during the 20th century caused widespread depletion of available soil calcium an essential plant nutrient throughout much of the industrialized world.
whether the prior decrease in soil calcium due to acid rain caused a proportional decrease in evapotranspiration
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Interestingly we observed that acid rain only had a temporary slowing effect on the growth of our experimental plots.
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acid rain as a result of the local nickel smelting industry. Despite moves to reduce environmental impact many areas of vegetation surrounding the lake are still in recovery.
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#New england lakes recovering rapidly from acid rainfor more than 40 years policy makers have been working to reduce acid rain a serious environmental problem that can devastate lakes streams
and the Adirondack mountains are recovering rapidly from the effects of acid rain. Researchers found that sulfate concentration in rain
Lakes are accelerating in their recovery from the past effects of acid rain. Our data clearly demonstrate that cleaning up air pollution continues to have desired the effect of improving water quality for our region's lakes said NHAES researcher William Mcdowell professor of environmental science and director of the NH Water Resources Research center.
According to the U s. EPA acid rain refers to a mix of wet and dry materials from the atmosphere containing higher-than-normal amounts of nitric and sulfuric acids.
The precursors of acid rain formation result from both natural sources such as volcanoes and decaying vegetation
Acid rain occurs when these gases react in the atmosphere with water oxygen and other chemicals to form various acidic compounds.
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They also contribute to acid rain ozone damage to trees and crops and the accumulation of toxic mercury in fish added Driscoll.
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#Greenland ice cores show industrial record of acid rain, success of US Clean Air Actthe rise
and fall of acid rain is a global experiment whose results are preserved in the geologic record.
Forty-five years ago acid rain was killing fish and dissolving stone monuments on the East Coast.
UW researchers began their study of ice cores interested in smog not acid rain. They discovered a link between the two forms of pollution in the geologic record.
and suggests that ratio is sensitive to the same chemicals that cause acid rain. This shows that the relationship between emissions and the isotopes is less direct than we thought
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