eutrophication News
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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 ...
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Baltic Sea environment visualized during EU Commission forum
What causes eutrophication in the Baltic Sea? What are the future scenarios for the ocean? Ocean environment issues will be illustrated in a visualization dome theatre during EU Commission forum in Gdansk, October 24-26th. The eutrophication of the Baltic Sea could be affected by climate change. In any decision concerning the environment, it is therefore increasingly important to consider the ...
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Sulphur and nitrogen pollution falling - but still harming ecosystems
European emissions of sulphur and nitrogen pollution have fallen greatly in recent decades, a new report shows. However, even at present levels they harm sensitive ecosystems, and will continue do so for some years to come. Air pollution damages ecosystems as well as human health. Sulphur and nitrogen are both acidifying air pollutants which travel long distances, affecting water, forests, ...
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Mar Menor lagoon feeling the heat
Environmentalists the world over are keen to preserve biodiversity but climate change is giving them a run for their money. One victim to such change is the Mar Menor (little sea) lagoon located on the Costa Calida coastline in Spain, say researchers from the University of Murcia. In their latest study, the researchers found that an up to 5oC rise in water temperatures by 2013 will not only ...
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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 ...
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Choking coastal waters
WRI, together with Dr. Bob Diaz at the Virginia Marine Institute, has identified and mapped 415 eutrophic and hypoxic coastal systems worldwide through an extensive literature review. Of these, 169 are documented hypoxic areas, 233 are areas of concern and 13 are systems in recovery. Our findings highlight the dramatic growth of areas receiving the endflows of nitrogen and phosphorus created by ...
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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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Female fish swap sex in polluted, low-oxygen water
Hypoxia – low levels of dissolved oxygen – can cause genetically female fish to develop into males, new research has found. Hypoxia in aquatic environments is often the result of eutrophication, which is caused by pollution from human activities. The findings suggest that hypoxia could cause fish populations to collapse, with consequences for entire ecosystems. There are more than ...
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Risks of biodiversity loss posed by nitrogen and phosphorus pollution in European freshwaters
The risk of eutrophication as a result of nitrogen and phosphorus pollution in Europe’s freshwaters fell by 22% in lakes and by 38% in rivers between 1985 and 2011, new research has shown. The researchers analysed data across 88 European river basins using a new statistical approach which could be used to help identify factors which increase eutrophication risks. Nitrogen and phosphorus ...
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Baltic Sea faces a tough future
The Baltic Sea is likely to be warmer, lower in oxygen and more acidic in the future, warn Swedish scientists in a recent study. Current strategies for managing the Sea will need to change if they are to meet marine protection objectives. Serious environmental problems are already clear in the Baltic Sea: pollution, overfishing and eutrophication are some well-known issues. According to the ...
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Environmental impact statement for the construction of the Yamatosaka dam, Japan
The Ministry of the Environment (MOE) has submitted the Minister's opinions on the environmental impact statement for the construction of the Yamatosaka Dam in Ehime Prefecture to the Ministry of Land, Infrastructure and Transport, in accordance with the provisions of the Environmental Impact Assessment Law. The project is to construct a dam on 76 ha of the reservoir area. As the project ...
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Baltic states failing to protect most damaged sea
Nine Baltic sea states all scored failing grades in an annual WWF evaluation of their performance in protecting and restoring the world’s most damaged sea. The assessment, presented today at the Baltic Sea Festival, graded the countries on how well they are doing in six separate areas - biodiversity, fisheries, hazardous substances, marine transport and eutrophication - and on how they have ...
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World water day: how cities cause “dead zones”
WRI identifies 13 new eutrophic areas around the world. World Water Day this year focuses on “Water for Cities,” but what about water from cities? Urban runoff is one of the biggest threats to water quality around the world, with serious impacts on economies and people. However, it’s a problem that most cities are only starting to address. Nutrient Pollution and Urban Runoff ...
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The world of watermaster - newsletter 2014
Restore and protect the environment, build and maintain the infrastructure - this is the goal and purpose of Watermaster dredgers and for nearly three decades Watermasters have been solving these challenges worldwide. Environmental challenges seem to be escalating all around. An alarming number of water systems globally have been inadequately maintained and left to deteriorate for years. The ...
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Air pollution still harming Europe`s ecosystems, despite reduced emissions
Emissions of nitrogen-containing pollutants continue to harm sensitive ecosystems, according to two new reports published today by the European Environment Agency (EEA). Nonetheless, both reports show a marked improvement over the last two decades. 'Effects of air pollution on European ecosystems' assesses the proportion of European ecosystems exposed to nitrogen and sulphur-containing ...
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How does the climate in the Baltic Sea vary now and in the future?
How has the climate in the Baltic Sea varied over the past 150 years? How will it develop up to the year 2100? A new research project will analyse how the climate in the Baltic Sea has varied since 1850 and simulate future scenarios for the Baltic Sea. There is insufficient knowledge on how climate changes affect the marine environment, even though studies show that a changed climate could have ...
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The effect of global warming on eutrophication in lakes
Shallow lakes are an important type of ecosystem that may be vulnerable to current warming trends. A recent study examines just how vulnerable they are. It indicates that climate change combined with nutrient pollution could exacerbate eutrophication and suggests nitrogen levels should be monitored. Shallow lakes are important in their support of biodiversity. However, their large ...
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Climate change increases eutrophication in the Baltic Sea
Model projections of the Baltic Sea show that changes will occur in the marine environment in a future climate. Nutrient load reductions to the Baltic Sea are of even higher importance in a warmer climate. A modeling tool has been developed to support decision making. New climate-change scenarios for the Baltic Sea show that the water temperature will increase and the salinity will decrease. ...
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How valuable are satellite observations of seawater quality?
Global Earth Observation (GEO), such as satellite observations, helps manage environmental resources and prevent disasters. However, they are expensive. A recent study proposes a framework to assess the value of GEOs in which stakeholders are consulted. GEO consists of all observational information about the state of the world, including satellite observations and 'in situ' information. Many ...
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Defra release UK emissions of air pollutants – 2009 results
This National Statistics release covers 2009 results from the National Atmospheric Emissions Inventory (NAEI) for UK emissions of sulphur dioxide, nitrogen oxides, non-methane volatile organic compounds (NMVOCs) and ammonia. These four pollutants are primarily responsible for acidification and eutrophication which can be damaging to ecosystems, and the formation of ground-level ozone which can be ...
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