nitrogen ecosystem impact News

  • Growth of algae affected by ocean acidification and nutrient pollution

    Ocean acidification and eutrophication may affect the growth of microscopic algae — phytoplankton — with knock-on impacts for marine food chains and fisheries, warns a new study. By growing phytoplankton under different scenarios the researchers found that phytoplankton species are affected differently according to the acidity and nutrient content of the water. Ocean acidification is ...

  • Nutrients in streams can mask toxic effects of pesticides on aquatic life

    Moderate levels of nitrogen in streams and rivers can make it difficult to assess the effects of pesticides on aquatic wildlife, because nutrients mask the pesticides’ impacts, according to recent research. This highlights the importance of considering nutrient levels when developing measures to protect aquatic ecosystems. Freshwater organisms are exposed to a number of natural and ...

  • SPS 2014 – Sustainable Phosphorus Summit

    SPS 2014, the fourth world summit on phosphorus and its global issues, is to be held from 1 to 3 September 2014 in Montpellier (France). Its aim is to address the issue of phosphorus, from a regional to a global scale, along with its many interactions with our societies. SPS 2014 will be held just after PSP5 - Phosphorus in Soil and Plants, ...

  • 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 ...

  • Bion - Kreider Project Grand Opening Follow Up

    Bion Environmental Technologies, Inc. (OTC: BNET) and Kreider Farms recently held the grand opening of Bion's livestock waste treatment project that utilizes its patented micro-aerobic digestion technology to reduce environmental impacts to the Chesapeake Bay. The event was held at the Kreider Farms dairy facility in Manheim, Lancaster ...

  • Double-Win “Algal Turf Scrubbers” Help to Clean Up Baltimore Harbor and Fuel Cars

    Algae absorb nutrients and produce oxygen—ecosystem services that are vital to the health of impaired water bodies like the Chesapeake Bay and Gulf of Mexico. Energy Department-funded researchers are investigating how to mimic these natural services, while at the same time, sustainably produce biomass for conversion to renewable biofuels and bioproducts. It’s a double win for the ...


    By US Department of Energy

  • 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 ...

  • 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

  • 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

  • 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, ...

  • Biodiversity beyond 2010: deciding the way ahead

    World leaders and policymakers are gathering at a major conference in Japan to debate how to halt global biodiversity loss. At this 10th Conference of the Parties (COP-10), the European Environment Agency is presenting its assessments on Europe’s biodiversity, including its new report on the EU 2010 Biodiversity Baseline. The European Union made a commitment in 2001 to halt biodiversity ...

  • 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 ...

  • Bioremediation of antibiotic pollution by a salt-marsh plant

    The effects of antibiotic contamination may be attenuated by the common reed, new research shows. The study found that the common reed (Phragmites australis), sourced from a temperate estuary with brackish water, had capacity for the bioremediation of the veterinary antibiotic enrofloxacin (ENR). The authors suggest that salt-marsh plants and their associated micro-organisms could be a valuable ...

  • 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 ...

  • 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; ...

  • 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 ...

  • 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 ...

  • How green is ethanol made from sugarcane?

    A recent study has concluded that expanding the amount of land in Brazil used to grow sugarcane for ethanol could have serious environmental and social consequences. It could lead to more pressure on natural rainforest if sugarcane displaces other crops northwards, degraded soil and water supplies, and exploitation of workers in the industry. Brazil provides an important case-study for policy ...

  • 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 ...

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