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How Humans Have Disrupted The Nitrogen Cycle
Researchers have found a new
proxy to measure the impact
of fossil fuel emissions on
the global nitrogen cycle.
The scientists use nitrogen
isotopes found in a Greenlan ... > full story
Organic Dairy Manure May Offer High Quality Fertilizer Option
Dairy cows that produce
USDA-certified organic milk
also produce manure that may
gradually replenish soil
nutrients and potentially
reduce the flow of
... > full story
Weather: People's Misperceptions Cloud Their Understanding Of Rainy Weather Forecasts
If Mark Twain were alive
today he might rephrase his
frequently cited observation
about everyone talking about
the weather but not doing
... > full story
Wenchuan Earthquake Mudslides Emit Greenhouse Gas
Mudslides that followed the
May 12, 2008, Wenchuan,
China earthquake may cause a
carbon-dioxide release in
upcoming decades equivalent
to two percent of current
... > full story
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Oceans More Sensitive To Acidification In The Future
June 22, 2009 — Researchers have calculated the buffer factor for water in the River Schelde and in the ocean. A wide range of chemical and microbiological processes influence the acidity of natural waters. Due to ... > full story -
Soil Nitrogen Test Measures Microbial Nitrogen
May 15, 2009 — The Illinois Soil Nitrogen Test was recently studied to clarify the chemical nature of what the test measures and its relationship to microbial growth in soils, determining that the test does not ... > full story -
Schwertmannite In Wet, Acid, And Oxic Microenvironments Beneath Polar And Polythermal Glaciers
May 5, 2009 — Chemical conditions beneath glaciers are difficult to observe and are usually studied by sampling meltwaters emerging from glacial oulets or drill holes. These waters average chemical signals over a ... > full story -
Why Fertilization Results In Loss Of Plant Biodiversity
May 1, 2009 — Fertilized grasslands are more productive but poorer in species. Researchers have now identified the mechanisms that lead to loss of biodiversity through fertilization. The new results show that ... > full story -
Biofuels Could Hasten Climate Change
April 15, 2009 — A new study finds that it will take more than 75 years for the carbon emissions saved through the use of biofuels to compensate for the carbon lost when biofuel plantations are established on ... > full story -
Airborne Acid May Help Soot Turn Into Cloud Seeds
March 28, 2009 — Carbon soot aerosols from combustion of fossil fuels and forest fires directly influence the Earth-atmosphere heat balance by absorbing sunlight. Fresh soot particles repel water and hence have ... > full story -
New Tool Differentiates Artificial From Natural Nitrogen-oxide Pollution
March 28, 2009 — Nitrogen oxides in the atmosphere, which are produced by lightning, biomass burning, and soil outgassing, are converted into atmospheric nitrate through oxidation reactions. Nitrogen oxide, itself a ... > full story -
Tree Species Composition Influences Nitrogen Loss From Forests
March 23, 2009 — The Catskill Mountains receive some of the highest nitrogen deposition rates in North America due to pollutants drifting, and a recent study in this region demonstrates how some forested watersheds ... > full story -
Making Wood A Clean, Efficient Energy Source With New Process
March 18, 2009 — Is wood the new coal? Some researchers now think so, and they working to turn woodchips into a substitute for coal by using a process called torrefaction that is greener, cleaner and more efficient ... > full story -
Vital Climate Change Warnings Are Being Ignored, Says Expert
February 23, 2009 — Canada's inland waters, the countless lakes and reservoirs across the country, are important "sentinels" for climate change and yet the warnings are being ... > full story
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