Artikel-artikel mengenai Nitrogen

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Transport and livestock are both significant contributors to nitrogen pollution. Annalucia/Shutterstock.com

You’ve heard of a carbon footprint – now it’s time to take steps to cut your nitrogen footprint

The University of Melbourne is the first institution in Australia to have its nitrogen footprint calculated – it's 139 tonnes per year, mainly because of food production, energy use and transport.
Long’s Peak framed by rock outcrop, Rocky Mountain National Park, Colorado. Roy Luck

Nitrogen from rock could fuel more plant growth around the world – but not enough to prevent climate change

Scientists have long thought most nitrogen in Earth's ecosystems comes from the air, but new research shows it also is released as rocks weather. This could boost plant growth and help sequester carbon – but not fast enough to avert climate change, as some pundits have claimed.
Six million people in Pennsylvania and neighboring states get their drinking water from the Susquehanna River. Major pollution sources include agriculture, urban development and industry. Nicholas A. Tonelli

Is your drinking water safe? Here’s how you can find out

America's drinking water infrastructure is aging and needs billions of dollars in upgrades. Two extension educators urge consumers to monitor their water and have it tested if they suspect problems.
Harmful algal bloom caused by nutrient pollution, Assateague island National Seashore, MD. Eric Vance, U.S. EPA/Flickr

Reducing water pollution with microbes and wood chips

Excess nutrients from farm fields cause widespread water pollution across the U.S. Bioreactors -- essentially, ditches filled with wood chips -- are emerging as a way to reduce nutrient pollution.
Nitrogen pollution is one of the factors driving outbreaks of crown-of-thorns - giant starfish that devour the reef. Kenneth Taylor Jr/Flickr

High-tech fertilisers and innovation have to come to the Great Barrier Reef’s rescue

The latest Great Barrier Reef report shows some improvements to water quality over the past five years, but there's still a lot to do on one particular problem: nitrogen.
Australian farmers apply nearly a million tonnes of nitrogen-based fertilisers every year. Pete Hill/Flickr

Meet N2O, the greenhouse gas 300 times worse than CO2

When we talk about greenhouse gases we usually talk about carbon dioxide. When media reports depict climate change, we invariably see the cooling towers of a coal power station. Which is fair, because…
Enjoy the color while you can before climate change makes a mess of this too. chensiyuan

Fall foliage in the crosshairs of climate change

One of nature’s most spectacular events occurs every autumn, when the leaves of hardwood trees burst into brilliant color before falling to the ground. These autumnal displays in the eastern United States…

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