Calculate your nitrogen footprint
Carbon footprints are a familiar way to assess how green your lifestyle is, but now you can also measure your nitrogen footprint using a new tool, the N-Calculator.
May 15, 2013
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May 15, 2013
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Microbes capture, store, and release nitrogen to feed reef-building coral
Microscopic algae that live within reef-forming corals scoop up available nitrogen, store the excess in crystal form, and slowly feed it to the coral as needed, according to a study published in mBio, the online open-access journa ...
May 14, 2013
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X-ray analysis could help reduce fertilizer pollution, improve legumes
(Phys.org) —The overuse of nitrogen fertilizers in agriculture can wreak havoc on waterways, health and the environment. An international team of scientists aims to lessen the reliance on these fertilizers ...
Apr 22, 2013
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Death of hemlock trees yields new life for hardwood trees, but at what cost to the ecosystem?
Due to the introduction of exotic pests and pathogens, tree species are being eliminated one by one from forest ecosystems. In some cases, scientists can observe immediately how their loss affects the environment, ...
Dec 20, 2012
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Solutions for a nitrogen-soaked world
Nitrogen is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds billions, a benefit and a hazard, depending on form, location, and quantity. Agriculture, industry ...
Jan 17, 2012
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Acid rain poses a previously unrecognized threat to Great Lakes sugar maples
Nitrogen fertilizers' impact on lawn soils
Nitrogen fertilizers from farm fields often end up in aquatic ecosystems, resulting in water quality problems, such as toxic algae and underwater 'dead zones'. There are concerns that fertilizers used on lawns may also contribute ...
Nov 04, 2011
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Nitrogen guidelines for cereal forages
Cereal grains such as wheat and barley are viable alternative hay crops and can provide valuable grazing opportunities. Due to drought resistance, good yields and ability to break pest cycles of perennial crops, annual forages ...
Jun 24, 2011
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Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their ...
May 11, 2011
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New free, hands-on tool supports sustainable living choices
People who want to eat healthy and live sustainably have a new way to measure their impact on the environment: a Web-based tool that calculates an individual's "nitrogen footprint." The device was created by University o ...
Feb 22, 2011
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Potent greenhouse gas in estuaries firmly linked to human activity
A University of Otago Marine Science PhD graduate has found a direct causal relationship between the production of a potent and harmful green-house gas emitting from estuaries in New Zealand and escalating impacts of human ...
Dec 21, 2010
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New way of removing excess nitrogen from the environment
Excess nitrogen from agricultural and urban lands is contaminating groundwater, streams, lakes and estuaries, where it causes harmful algal blooms and contributes to fish kills.
Nov 01, 2010
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Whale poop pumps up ocean health
Too much of a good thing: Human activities overload ecosystems with nitrogen
Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is ...
Oct 07, 2010
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Cleaning the Chesapeake Bay from space
(PhysOrg.com) -- A pilot test of an innovative use of new remote sensing technologies to aid the Chesapeake Bay cleanup begins this year in Talbot County, Md., on the Bay's Eastern Shore.
Aug 31, 2010
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