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Tag: "pollution" at biology news

Asexual worm quickly adapts to soil contamination

... study into the long-term effects of environmental pollution on soil organisms. Environmental pollution is an important cause of stress in natural populations. This not only has consequences for the size,...

Woman's Day and For Womens of Science

...e, the socioeconomic and health effects of mercury pollution on human populations, and its effects on the world...anet. The actual socioeconomic costs of mercury pollution are probably much greater than estimated because existing economic analyses don't consider mercury's...

Mercury contamination of fish warrants worldwide public warning

...e, the socioeconomic and health effects of mercury pollution on human populations, and its effects on the world...anet. The actual socioeconomic costs of mercury pollution are probably much greater than estimated because existing economic analyses don't consider mercury's...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...re produced from organic materials and help reduce pollution and greenhouse gas emissions while diversifying the energy supply. Conventional biorenewable fuels include ethanol from corn starch and biodiesel from soybean oil. Advanced biofuels are expected to be made from fibrous biomass such as the stalks and ...

A new study of living cells could revolutionize the way we test drugs

...ivity test could be used to monitor the effects of pollution on naturally occurring micro-organisms in the environment. To detect a cell’s normal activity, Andre Geim and fellow researchers modified apparatus used originally to detect weak magnetic fields in superconductors*. Unfortunately, these modificati...

Smoking ban dramatically reduces air pollution in Irish pubs

...Ireland resulted in an 83 percent reduction in air pollution in pubs, an 80 percent decrease in airborne carcinogens for patrons and staff, and an improvement in the respiratory health of bar workers, according to a one-year follow-up study. The research appears in the second issue for April 2007 of the Ameri...

Global 'sunscreen' has likely thinned, report NASA scientists

...net by greenhouse gases ?sunlight blocked by dust, pollution and other aerosol particles ?appears to have lost ground. The thinning of Earth’s "sunscreen" of aerosols since the early 1990s could have given an extra push to the rise in global surface temperatures. The finding, published today in the journal Sc...

Ethanol vehicles pose a significant risk to human health, study finds

...d in the U.S., the testbed for nearly all U.S. air pollution regulation and home to about 6 percent of the U.S. population, it is also ideal for a more detailed study,'' he wrote. Jacobson programmed the computer to run air quality simulations comparing two future scenarios: A vehicle fleet (that is, al...

Stem cell transplants explored at Stanford as a possible treatment for hearing loss

...he solution. As the population has aged and noise pollution has grown more severe, health experts now estimate that one in three adults over the age of 65 has developed a handicapping hearing loss. Coming up with the answers is a slow process, Heller said. "This research takes time and money, but we rem...

Scientists map air pollution using corn grown in US fields

...cientists at UC Irvine have mapped fossil fuel air pollution in the United States by analyzing corn collected f...elp atmospheric scientists better understand where pollution is located and how it mixes and moves in the air. Tracking fossil-fuel-emitted carbon dioxide will b...

Too much of a good thing? Excess nutrients or water limit biodiversity

...ss of plant species from a habitat due to nutrient pollution can persist for more than 100 years," Harpole said. "Thus human actions that simplify habitats can lead to long-term loss of biodiversity."...

Seagrass ecosystems at a 'global crisis'

...nd the resulting increase of nutrient and sediment pollution have contributed to large-scale losses worldwide. "Seagrasses are the coal mine canaries of coastal ecosystems," said co-author Dr. William Dennison of the University of Maryland Center for Environmental Science. "The fate of seagrasses can provid...

Researchers link ocean organisms with increased cloud cover and potential climate change

...evels ?whether they originate from humans with air pollution or from biological activity. We can now see very ...ideal for study because it is largely untouched by pollution and has relatively steady temperature and meteorological conditions during the seasons in which phyt...

A silent pandemic: Industrial chemicals are impairing the brain development of children worldwide

...e the human brain, and they conclude that chemical pollution may have harmed the brains of millions of children worldwide. The authors conclude further that the toxic effects of industrial chemicals on children have generally been overlooked. To protect children against industrial chemicals that can injure...

Small, smaller, smallest -- The plight of the vaquita

... of its habitat. A risk factor analysis discounted pollution or the drastic reduction of freshwater flow from the Colorado River as primary culprits. It is also not a genetic problem. Genetic analyses and population simulations suggested that the vaquita has always been rare and that its extreme loss of genomi...

Rising ocean temperatures, pollution have oysters in hot water

...ing, rising ocean water temperatures and increased pollution have combined to reduce the oyster population to 5...this shows that the combination of temperature and pollution combine to intensify the stress placed on the oyster's physiological system. In future experiment...

China's environmental challenges

...conomic growth. The downside is the environmental pollution wrought by rapid urbanization, particularly on water and air quality. Min Shao et al. (Peking University) predict that by 2020, 50 percent of China's population will be living in towns and cities, and that domestic water needs will be double those o...

NASA study: Alaskan fires affected Houston air quality in 2004

...o University and Rice University, found that ozone pollution levels increased significantly in the air above Ho...om the distant forest fires, and the typical urban pollution generated in the Houston area provided a potent mix for increasing local ozone concentrations, he sa...

High hourly air pollution levels more than double stroke risk

.... Pervious research shows that the effects of air pollution act quickly on the body, say the authors, with inhaled particles detectable in the blood within 60 seconds. Peak levels can stay in the blood for up to an hour. Their findings prompt the authors to suggest that preventive measures should be based on...

Better sludge through metagenomics

...nally fail. These failures often result in serious pollution of lakes, rivers, and estuaries." When things go wrong, the environment can be inundated with untreated phosphorous, carbon, and nitrogen--the detritus of human activities--necessitating costly and environmentally taxing remedies and exposing the p...

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