News tagged with nutrient pollution
Chesapeake Bay cleanup a local issue for Pennsylvania, expert says
Sep 16, 2009 |
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(PhysOrg.com) -- As federal agencies respond this month to President Barack Obama's executive order to redouble efforts to clean up the Chesapeake Bay, the challenge in Pennsylvania is to focus on local initiatives ...
International experts weigh-in on harmful algal blooms
Jan 06, 2009 |
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Cambridge, Md. - An international group of scientists is linking nutrient pollution in the world's coastal seas to an increase in the number of harmful algal blooms reported in recent years. When harmful algal blooms (HAB's) ...
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Long-Term Effects of Carbon Dioxide on Plants Studied
3 hours ago |
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(PhysOrg.com) -- Long-term, open-top chamber studies of how rising carbon dioxide (CO2) could affect crops, forests, and pastures reveal a wide range of impacts, according to Agricultural Research Service ...
Study reveals how Arctic food webs affect mercury in polar bears
20 hours ago |
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With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these magnificent Arctic animals.
ADA releases updated position paper on nutrient supplementation
20 hours ago |
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While supplements can help some people meet their nutrition needs, eating a wide variety of nutrient-rich foods is the best way for most people to obtain the nutrients they need to be healthy and reduce their risk of chronic ...
Parasite evades death by promoting host cell survival
23 hours ago |
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Researchers have discovered how the parasite Trypanosoma cruzi, which causes Chagas' disease, prolongs its survival in infected cells. A protein on the parasite activates the enzyme Akt, which blocks cell ...
Cholera bacteria show adaptability to changing environments
Dec 08, 2009 |
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(PhysOrg.com) -- The deadly bacterium behind cholera epidemics spends only a fraction of its life infecting humans. Most of the time, Vibrio cholerae lurks in estuaries and other semisalty aquatic habitats.
Blue whales singing with deeper voices
Dec 08, 2009 |
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(PhysOrg.com) -- Blue whales, the largest animals on earth, are singing with deeper voices every year, but scientists are unsure of the reason.
Study confirms untold levels of oil sands pollution on the Athabasca
Dec 07, 2009 |
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After an exhaustive study of air and water pollution along the Athabasca River and its tributaries from Fort McMurray to Lake Athabasca, researchers say pollution levels have increased as a direct result of nearby oil sands ...
EPA says greenhouse gases endanger human health
Dec 07, 2009 |
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(AP) -- The Environmental Protection Agency took a major step Monday toward regulating greenhouses gases, concluding that climate changing pollution threatens the public health and the environment.
White, but not pure
Dec 07, 2009 |
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Even the snow on Aconcagua Mountain in the Andes is polluted with PCBs. An international team of researchers detected low concentrations of these toxic, carcinogenic chlorine compounds in samples taken from ...
Appetite, consumption controlled by clockwork genes at cross-purposes in flies
Dec 06, 2009 |
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One of the pioneers in research on sleep:wake circadian genes, Amita Sehgal, Ph.D., has discovered that fruit flies' appetite and consumption are controlled by two rival sets of clocks, one in neurons and the other in the ...
List of search results for nutrient pollution
