nitrogen ecosystem impact News

  • How Grazinglands influence greenhouse gas

    Grazinglands represent one of the largest land resources in the world, yet their role as net sinks or sources of greenhouse gases is essentially unknown. Previous research has emphasized the role of grazing management on the sequestration of atmospheric carbon dioxide as soil organic carbon. However, there is a lack of information regarding how grazing management impacts the flux of two potent ...

  • Air quality: Environment MEPs call for tougher new national caps on pollutants

    As air pollution is responsible for around 400,000 premature deaths in the EU yearly, Environment MEPs on Wednesday tightened up Commission plans and called for more ambitious national caps on emissions of six main pollutants, such as sulphur dioxide, particulate matter and nitrogen oxides in order to cut emissions by 70% across the EU and save €40bn in air pollution costs by 2030. MEPs also ...


    By European Parliament

  • Healthy soils for a healthy planet

    Healthy soils are vital in a world challenged by climate change. We need to decide how best to use land to provide food for a growing population and how it can be used to mitigate the effects of manmade emissions. The quality of soil must be maintained or restored if it is to provide its essential services: cycling nutrients, water and air, supporting biodiversity and acting as a substantial ...

  • Questions and Answers on the new European air quality directive

     Questions and Answers on the new directive on ambient air quality and cleaner air for Europe 1) What is the issue? Air pollution is caused by the emission to the atmosphere of certain substances which, alone or through chemical reaction, can damage human health and/or the environment. Air pollution is both a local and a transboundary problem as emissions from one country can travel large ...

  • Why is ground-level ozone not on the decline?

    Europe has significantly cut its emissions of gases that lead to ground-level ozone. Despite this, levels of ozone do not appear to be falling. A recent EEA report questions this and suggests that the effect of the emission cuts on ozone may be masked by variable weather conditions. In many countries of Europe, the time-series of ozone data are yet too short to draw conclusions about long-term ...

  • Regional policies needed to tackle eutrophication in Europe`s seas

    Eutrophication is a serious problem in some European seas, but each sea responds differently to excessive nutrient input from human activities. For this reason, a recent study recommends that policies to address eutrophication of marine waters should be tailored to each regional sea. Marine waters that are enriched with excessive nutrients, particularly nitrogen and phosphorus, can experience ...

  • New report warns of expanding threat of hypoxia in U. S. coastal waters/declining oxygen levels in nation’s waters forming dead zones, destroying habitats

    A report issued today by key environmental and scientific federal agencies assesses the increasing prevalence of low-oxygen “dead zones” in U.S. coastal waters and outlines a series of research and policy steps that could help reverse the decades-long trend. The interagency report notes that incidents of hypoxia—a condition in which oxygen levels drop so low that fish and other ...

  • Europe still playing catch-up on air pollution, despite reduction successes

    The European Union appears to have met several objectives to reduce the impacts of air pollution, according to the original scientific understanding used to set the objectives. But when using the improved scientific understanding of air pollution now available, it becomes clear that emissions need to be even further reduced to protect health and the environment. The European Environment ...

  • The co-benefits of co-ordinated climate change policy

    Globally co-ordinated climate change policy to limit warming to 2¢XC could provide additional health, ecological and economic benefits. Using established methods, researchers estimated that the implementation of climate policy would also reduce global expenditures on air pollution control in 2050 by £á250 billion. Climate change mitigation is essential but expensive. However, ...

  • Future of the Baltic Sea the focus of new research

    The problems associated with eutrophication have long affected the Baltic Sea. Large blooms of toxic algae, oxygen-free bottoms and changes to composition of species have all impacted on the sea. Four years of research will provide more knowledge about the future of the Baltic. The Baltic Sea is a unique and sensitive inland sea which is heavily influenced by some 90 million people living around ...

  • Public views on Baltic eutrophication have important policy implications

    Citizens in countries surrounding the Baltic Sea would be willing to contribute financially towards long-term management of eutrophication, according to a recent study. Furthermore, most would like to see the Baltic Sea managed as a single whole, rather than only improving their local coastal area. Eutrophication, caused by nutrient release from human activities such as agriculture, industry and ...

  • Hunt Refining Pays $49 Million to Settle Air Pollution Charges

    WASHINGTON, DC, September 28, 2007 (ENS) - The Hunt Refining Co. and Hunt Southland Refining Co. have agreed to pay a $400,000 civil penalty and spend more than $48.5 million for new and upgraded pollution controls at three refineries, the Justice Department and U.S. Environmental Protection Agency announced today. The settlement resolves alleged violations of the Clean Air Act ...

  • Cruise-liner sewage adds to Baltic water quality decline

    Most international cruise ship companies operating in the Baltic Sea have refused to co-operate with a plea from WWF to stop dumping their sewage straight into the water. The Baltic, an inland sea, is one of the most polluted seas in the world, so much so that the countries on its northern European shores have recently joined together to form the Baltic Sea Action Plan in an attempt to reverse ...


    By WWF UK

  • Legally binding ban proposed on ocean fertilisation

    Australia has joined with Nigeria and South Korea to propose a legally binding ban on commercial ocean fertilisation. But the move would not prevent legitimate scientific research, according to Tony Burke, Australian Minister of the Environment. The proposal was sent to the London Convention and Protocol, which governs marine pollution and dumping at sea, on 16 May, and it will be considered when ...


    By SciDev.Net

  • Biodiversity Vital for Clean Streams

    The first study to rigorously show how biodiversity improves water quality has been published in Nature. It offers proof that the more species a habitat holds, the faster pollutants are removed from the water. Brad Cardinale, an ecologist at the University of Michigan in Ann Arbor, is now developing his research from artificial lab-based environments to field-based streams. Cardinale used 150 ...


  • EPA and Partners Release New Blueprint to Protect and Restore Long Island Sound

    The Long Island Sound Study has released a new Comprehensive Conservation and Management Plan for restoring and protecting the Long Island Sound, setting 20 ambitious targets to be achieved by 2035. Among these goals are: a reduced number of beach closures due to sewage pollution; a reduced area of the Sound with unhealthy oxygen levels; improved water clarity; restored coastal wetlands; ...

  • Hunt Refining Settles Federal Air Pollution Case for $49 Million

    (Washington, D.C. - Sept. 28, 2007) The Hunt Refining Co. and Hunt Southland Refining Co. have agreed to pay a $400,000 civil penalty and spend more than $48.5 million for new and upgraded pollution controls at three refineries, the Justice Department and U.S. Environmental Protection Agency announced. The settlement resolves alleged violations of the Clean Air Act and is expected to reduce more ...

  • Pennsylvania clean water fund reaches US$170m

    A $170 million fund has been created to help wastewater ratepayers and farmers finance improvements needed to address Chesapeake Bay and statewide water quality improvement mandates. The Pennsylvania Fair Share for Clean Water Plan announced today is the result of collaboration by municipal authorities, farmers, builders, conservation districts and the nonprofit Chesapeake Bay Foundation. 'For ...

  • Nancy Rabalais, Expert on Marine Hypoxia, to Receive the 2008 Clarke Prize

    FOUNTAIN VALLEY, Calif. – The National Water Research Institute (NWRI) announced today that aquatic scientist Nancy N. Rabalais, Ph.D., will be the fifteenth recipient of the NWRI Athalie Richardson Irvine Clarke Prize for excellence in water research. Rabalais is Executive Director and Professor of the Louisiana Universities Marine Consortium in Chauvin, Louisiana, which provides coastal ...

  • 20 years of monitoring provides insight into New Zealand`s river water quality

    Two decades of monitoring of river water quality by NIWA has provided important information that is helping to care for New Zealand’s iconic rivers. More than 18 000 river water samples have been collected by New Zealand’s National Rivers Water Quality Network (NRWQN) over the past 20 years to monitor river conditions. The Network, which was set up to detect trends and conditions in water ...

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