(Phys.org)—First tops, then flops. That is one way of summing up the history of biofuels so far. A new study led by Empa gives an up-to-date picture of the ecobalance of various biofuels and their production processes. ...
Energy & Green Tech
Sep 24, 2012
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The good news is global and local. Keeping inland lakes from turning green means less greenhouse gases entering the atmosphere and contributing to climate change. Healthy drinking water, fishing and recreation opportunities ...
Environment
Mar 26, 2019
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282
Anthropogenic eutrophication of lake ecosystems is a global problem, especially for some large shallow lakes. But scientists have been unclear why shallow lakes appear prone to eutrophication.
Ecology
Jun 24, 2022
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Beaver ponds contain nitrogen, an essential nutrient that can become a pollutant when too much is present. Land managers need to know if beaver ponds are storing or releasing nitrogen, but chemical testing can be expensive. ...
Environment
Apr 20, 2023
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The aquatic ecosystem functioning is at risk of being disrupted by the stoichiometric mismatch between phytoplankton and zooplankton. When climate warming or eutrophication acted individually, the increase in nutrient demand ...
Ecology
Aug 31, 2023
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One of the leading threats to lakes since the rise of agriculture are runoffs from fertilizer, in the form of high phosphorus levels. These can trigger devastating events like eutrophication, where deadly algal blooms thrive ...
Evolution
Jan 9, 2020
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160
In São Paulo City, Brazil, the Tietê River is polluted by a vast amount of waste, mainly domestic sewage, but the farther it runs into the interior, the better the quality of its water becomes. It is much less murky at ...
Earth Sciences
Apr 30, 2019
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9
Think summer holidays and you'll likely call up images of a beautiful beach or a glittering blue lake. But more and more lakes, rivers and coastal areas are plagued by an oversupply of nutrients that causes algae to grow ...
Environment
Aug 2, 2018
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Eutrophication and brownification change phytoplankton community structure and decrease the production of essential omega-3 fatty acids in lakes. Perch growing in oligotrophic clear-water lakes contain 1.5-1.9 times more ...
Environment
Sep 30, 2016
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15
New research by the World Resources Institute (WRI) and the Virginia Institute of Marine Science, College of William and Mary, identifies more than 530 low-oxygen "dead zones" and an additional 228 sites worldwide exhibiting ...
Environment
Jan 21, 2011
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