Tag: "cities" at biology news

Colorado State and international scientists say loss in biodiversity by year 2100 could be consequence of global changes

...mes. Nitrogen deposition is greatest near northern cities in temperate zones and least in the arctic and southern temperate forests. Overall, land-use change seems to be the dominant driver, although in some biomes land-use and climate change have relatively little effect. In freshwater systems, land-us...

Environmental issues fail to capture national interest, says Temple University professor on eve of 30th Earth Day celebration

... pollution clouds over many of the nation's larger cities and the California coast continues to feel the effects of the 1969 Santa Barbara oil spill, tens of thousands of people rally for the environment in Philadelphia's Fairmount Park, giving birth to what has become known as Earth Day. And while people...

Private and public insurance deny few services

...as a no-refusal policy for police cases. All three cities had relatively low arrest rates when a specialized response was made, making collaboration between the criminal justice system and the mental health system critical. ["Comparing Outcomes of Major Models of Police Responses to Mental Health Emergencie...

Spring meeting press conferences

...pulation is concentrated in urban areas, and these cities and megacities continue to grow. Decision makers i...of urban dynamics allow us not only to see how our cities have changed but also to project these changes into the future (examples include San Francisco and B...

Ancient mediterranean port city may have been holy land way station

...duce the valuable dye and export it to nearby port cities via boats. Because of a lack of written history a..., and that Aperlae headed a union of four regional cities intent on maintaining their independence in the first and second centuries, said Hohlfelder. Two oth...

Tiny particles of dirt really can kill

...d death rates and pollution levels in six American cities by following more than 8000 adults for up to 16 years. They found that the death rates increased in almost direct proportion to the level of particulate pollution. People living in the most polluted city-Steubenville, Ohio-had a 26 per cent risk of...

Scientists tackle ecology of cities

...The complicated, messy and uncharted ecosystems of cities are finally getting their due, as scientists plung... explores the idea that the study of ecosystems of cities is just as important a pursuit as analysis of "pristine" ecosystems found far from human activity, w...

Media Advisory 2: Fall Meeting: Abstracts, press conferences, press registration

...out a critical event in Earth's history Lost cities off the Egyptian coast: what have we learned? Coping with uncertainties in climate change research and policy activities Effects of natural hazards in prehistoric times Fire in boreal forests The science of carbon sequestration Microbia...

2000 FALL MEETING: updated press conferences, press registration, and other information

...B11A, B12C) Sunday, December 17 2:00 PM Sunken cities of the Alexandria, Egypt, coast Earthquakes some ...ost, but recently discovered, sunken and destroyed cities off the present day Mediterranean coast of Egypt. The ruins, under several meters of water and silt ...

Simple rules predict the outcome of predator-prey struggles

...es, including measles 'preying on' people in large cities like London, on commercially important crab populations in the Pacific and on forest insect pests, despite the fact that the patterns of population variation look quite complicated," said Stephen P. Ellner, the Cornell professor of ecology and evolut...

New study reveals a major cause of global warming - ordinary soot

...ople die each year from air pollution - 900,000 in cities and 1.8 million in rural areas,`` he observes. ``The largest source of mortality from air pollution is indoor burning of biomass and coal,`` he notes. ``Reduction of such burning, therefore, will not only mitigate global warming but also will save l...

The role of science in restoring California's water resources

... - one that meets the demands of thirsty farms and cities while protecting Northern California`s fragile rivers and lakes. The critical role played by environmental scientists in solving the state`s complex water issues will be the subject of a symposium at the annual meeting of the American A...

Scientists, ships, aircraft to profile Asian pollution and dust

...eireastward journey toward heavily populated Asian cities and thenorthwest Pacific Ocean. Awaiting their arr...ighdeserts, sending dense plumes over the populous cities of China,Japan, and Korea in spring. By summer, thunderstorms change thecirculation, disrupting the ...

From dolphins to the Giant Panda - chemistry at SeaWorld and the San Diego Zoo

... Diego, Calif. San Diego is one of only three U.S. cities - joining Atlanta and Washington, D.C. - that boasts the Giant Panda at its zoo. Mark Edwards, the chief nutritionist at the San Diego Zoo, supervises the diets of more than 4000 animals at the zoo and 3200 animals at the San Diego Wild Animal Pa...

Researchers reveal contaminated factory sites unknown to regulators

...esidential areas," according to Eckel. Large cities where Eckel discovered many of the sites include Boston, Buffalo, Chicago, Dallas, Detroit, Houston, Jersey City, Los Angeles, Newark, New York, Philadelphia, Pittsburgh and San Francisco. Eckel sampled eight of 12 sites he visited in Baltimor...

Drinking Water from Forests and Grasslands: A Synthesis of the Scientific Literature

...icultural land uses. Approximately 3,400 towns and cities depend on National Forest System watersheds for their public water supplies. About 60 million Americans served by public water supplies live in communities that draw source water from national forests and grasslands. The research focuses on potential...

Standing tall: Plains indians enjoyed height, health advantage

...njoyed, many whites living in cities - particularly the poor - couldn't afford ... food for a healthy and complete diet. These large cities and towns were densely packed and lacked modern sanitary practices, ...

Remote sensing study defines "edgy" cities

...hat allow researchers to define different kinds of cities models that explain key differences that exist be...ave turned to satellite data being gathered on 100 cities around the globe by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on N...

Shift from forest to crops lowers temperatures

...as either crops or forestsand there were no nearby cities or water bodies, which can have theirown distinct effects on temperatures. The cropland sites werepredominantly in the Midwest, where 80% of the land is now undercultivation; the forested stations were in the Northeast, where just20% of the land is n...

Study reveals critical factors affecting urban pollution

...g ozone concentrations in U.S. cities is beyond the control of local ... transportation, forests and farmland in cities can have in lowering levels of ozone and carbon monoxide. "...

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