Fertiliser’s true climate impact

Author(s): Dinsa Sachan Issue: May 15, 2012 Empirical estimates of nitrous oxide levels in environment made The air samples were taken from atmospheric monitoring station in Tasmania (Courtesy: Dr David Etheridge)NITROUS oxide is a potent greenhouse gas—it is 300 times more powerful than carbon dioxide in causing global warming. Though it reaches the environment through different sources like sewage treatment, livestock, vehicles […]

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Toxic legacy: Nitrate pollution in California could affect 260,000 people

Author(s): Swetha Manian http://www.downtoearth.org.in/content/toxic-legacy Issue: Apr 30, 2012 Nitrate contamination has grown worse in agricultural areasTHOUGH nitrogen and nitrates occur naturally, they are at levels that do not harm. But concern is increasing about high concentrations of nitrogen leaching into aquifers from synthetic fertilisers and manure applied to cropland, resulting in nitrate pollution. High-nitrate levels can cause cancer, reproductive disorders and can […]

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