Posts Tagged ‘global warming’
Earth & Environment - Sep 1, 2009 6:00 - 0 Comments
Icy mile leads to climate future
The international North Greenland Eemian Ice Drilling, or NEEM, project begun in 2009 to retrieve deep ice cores from the Earth’s Eemian warm period 120,000 years ago. Atmospheric gases trapped in the ancient ice are expected to help scientists better assess the risks of abrupt climate change as Earth warms in the future. (Courtesy: NEEM Ice Core Drilling Project)
Earth & Environment - Aug 25, 2009 4:00 - 0 Comments
Warmer oceans tangle food chain
Dina Leech and Virginia Schutte collect zooplankton from Bogue Sound using a plankton tow net. Plankton from the net were rinsed into a sieve and then added to the experimental microcosms. (Credit: Mary O’Connor/UNC)
Earth & Environment - Aug 17, 2009 4:00 - 0 Comments
Harbinger of hurricanes to come
Close-up of Hurricane Isabel taken from the International Space Station in 2003. (Credit: NASA)
Earth & Environment - Aug 13, 2009 12:37 - 0 Comments
Toastier temps make for smaller sheep
Soay sheep graze on the Scottish island of Hirta. Their average size has been declining since 1985, and researchers suspect warmer temperatures are playing a role. (Credit: Tim Coulson)
Earth & Environment - Aug 11, 2009 4:00 - 0 Comments
Beijing air sets Olympic gold standard
Above, a view of northwest Beijing on a clear day and, below, on a smoggy day.
Earth & Environment - Jul 29, 2009 17:15 - 1 Comment
Amphibians don’t cozy up to warmer climes
“We could see changes to ecosystem structure and stability if cold-blooded species change their life histories to accommodate warmer temperatures but warm-blooded species do not,” says researcher Santiago Salinas.
Earth & Environment - Jul 23, 2009 12:32 - 1 Comment
Green revolution fueled by duckweed?
Todd Michael, a plant biologist at Rutgers, says U.S. Department of Energy’s duckweed genome sequencing project “could unlock the remarkable potential of a rapidly growing aquatic plant for absorbing atmospheric carbon dioxide, ecosystem carbon cycling, and biofuel production.”
Earth & Environment - Jul 21, 2009 12:32 - 0 Comments
Out West, hotter temps shrink water supply
Lake Powell in Utah is one of several massive Colorado River reservoirs that could be severely depleted in the coming decades as a result of warming temperatures in the West, according to a new study led by the University of Colorado at Boulder. (Courtesy: Bureau of Reclamation)
Earth & Environment - Jul 16, 2009 13:25 - 2 Comments
Carbon not the only culprit in global warming?
Mean surface temperature anomalies during the period 1999 to 2008 with respect to the average temperatures from 1940 to 1980. (Courtesy: Robert A. Rohde/Wikipedia)
Earth & Environment - Jul 14, 2009 17:12 - 0 Comments
Divvying up fair share of carbon emissions
“Most of the world’s emissions come disproportionately from the wealthy citizens of the world, irrespective of their nationality,” says physicist Shoibal Chakravarty, noting that many emissions come from lifestyles that involve airplane flights, car use and the heating and cooling of large homes. “We estimate that in 2008, half of the world’s emissions came from just 700 million people.”
Earth & Environment - Jul 2, 2009 13:42 - 0 Comments
Traveling rain band could leave billions dry
The band of heavy precipitation indicates the intertropical convergence zone. The new findings by University of Washington researchers are based on sediment cores from Pacific islands near the equator.
Earth & Environment - May 27, 2009 9:55 - 1 Comment
Tree-killing hurricanes worsen global warming?
TULANE (US)—A first-of-its-kind, long-term study of hurricane impact on U.S. trees shows storm damage can diminish a forest’s ability to absorb carbon dioxide, a major contributor to global warming. (more…)
Society & Culture - May 21, 2009 13:48 - 0 Comments
Alarmed to dismissive: U.S. views on global warming
YALE (US)—Americans fall into six distinct groups regarding their climate change beliefs, attitudes, and behaviors, according to a new report, “Global Warming’s Six Americas,” by researchers at Yale and George Mason universities. (more…)
Earth & Environment - May 20, 2009 12:16 - 0 Comments
Ocean-current model doesn’t hold water?
The prevailing notion that cold water circulating from the North Atlantic returned to the south in a coast-hugging current has been called into question by new data from Duke University and the Woods Hole Oceanographic Institute. (Credit: Archana Gowda
Earth & Environment - May 6, 2009 13:07 - 0 Comments
Arctic glider yields unrivaled under-ice data
U. WASHINGTON (US)—A seaglider’s record-breaking journey under ice is helping scientists form a more complete picture of changes taking place in Arctic waters. (more…)
Earth & Environment, Health & Medicine - Apr 23, 2009 14:13 - 2 Comments
Toxic ticks spread illness as planet warms
YALE (US)—A new study suggests fighting infectious disease could prove more challenging on a warming planet. Scientists have made a link between climate and the severity of Lyme disease in certain regions of the United States. Rising temperatures may lead to stronger, more persistent strains of the tick-borne illness, according to the findings. (more…)
