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Public Release: 20-Nov-2009
International expedition investigates climate change, alternative fuels in Arctic NRL marine biogeochemistry and geology and geophysics scientists return from Arctic expedition exploring methane hydrate deposits in the Beaufort Sea and spatial variation of sediment contribution to Arctic climate change. Contact: Daniel Parry Public Release: 20-Nov-2009
New method to measure snow, vegetation moisture with GPS may benefit farmers, meteorologists A research team led by the University of Colorado at Boulder has found a clever way to use traditional GPS satellite signals to measure snow depth as well as soil and vegetation moisture, a technique expected to benefit meteorologists, water resource managers, climate modelers and farmers. Contact: Kristine Larson Public Release: 19-Nov-2009
ORNL, Los Alamos pioneer new approach to assist scientists, farmers Sustainable farming, initially adopted to preserve soil quality for future generations, may also play a role in maintaining a healthy climate, according to researchers at the US Department of Energy's Oak Ridge and Los Alamos national laboratories. Contact: Ron Walli Public Release: 19-Nov-2009
SMOS satellite instrument comes alive The MIRAS instrument on ESA's SMOS satellite, launched earlier this month, has been switched on and is operating normally. MIRAS will map soil moisture and ocean salinity to improve our understanding of the role these two key variables play in regulating Earth's water cycle. Contact: Robert Meisner Public Release: 19-Nov-2009
Mysteriously warm times in Antarctica A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages (interglacials) may have been higher than previously thought. The latest analysis of ice core records suggests that Antarctic temperatures may have been up to 6°C warmer than the present day. Contact: Heather Martin Public Release: 19-Nov-2009
After mastodons and mammoths, a transformed landscape Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such iconic creatures as mammoths, mastodons, camels, horses, ground sloths and giant beavers -- began their precipitous slide to extinction. Contact: John Williams Public Release: 18-Nov-2009
Berkeley Lab lends expertise to India to promote energy efficiency India may rank only a distant fourth in terms of carbon dioxide emissions, behind China, the United States and Russia, but its rapid economic growth rate coupled with aging and inefficient energy infrastructure suggest dire environmental consequences if "business as usual" continues. That's why experts from the Lawrence Berkeley National Laboratory have been working to expand collaborations with India on energy efficiency. Contact: Julie Chao Public Release: 18-Nov-2009
Hidden threat: Elevated pollution levels near regional airports Scientists are reporting evidence that air pollution -- a well-recognized problem at major airports -- may pose an important but largely overlooked health concern for people living near smaller regional airports. Those airports are becoming an increasingly important component of global air transport systems. The study, one of only a handful to examine airborne pollutants near regional airports, suggests that officials should pay closer attention to these overlooked emissions, which could cause health problems for local residents. Contact: Michael Bernstein Public Release: 18-Nov-2009
NASA's QuikScat and Aqua providing important data on Tropical Storm Anja Tropical Storm Anja has continued to weaken over the last 24 hours, and NASA's QuikScat satellite has confirmed that the once mighty Category 4 Cyclone is now a tropical storm in the southern Indian Ocean. Two instruments on NASA's Aqua satellite have also helped forecasters determine Anja's location and change of shape. Contact: Rob Gutro Public Release: 18-Nov-2009
Oceans' uptake of manmade carbon may be slowing The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism during the industrial era suggests the oceans are struggling to keep up with rising emissions -- a finding with potentially wide implications for future climate. The study appears in this week's issue of the journal Nature. Contact: Kim Martineau Public Release: 17-Nov-2009
Cyclone Anja hits wind shear, weakens drastically This morning, Cyclone Anja was a powerful Category 4 cyclone on the Saffir-Simpson scale. Wind shear has now giving Anja a strong "punch in the gut" as the storm has weakened to a Category 1 cyclone. Contact: Rob Gutro Public Release: 17-Nov-2009
Experts: Failure to focus on farming will undermine global climate agreement and increase hunger Alarmed by a substantial oversight in the global climate talks leading up to the United Nations Climate Change Conference in Copenhagen next month, more than 60 of the world's most prominent agricultural scientists and leaders underscored how the almost total absence of agriculture in the agreement could lead to widespread famine and food shortages in the years ahead. Contact: Megan Dold Public Release: 17-Nov-2009
Purdue, NASA research provides blueprint for molecular basis of global warming A new study indicates that major chemicals most often cited as leading causes of climate change, such as carbon dioxide and methane, are outclassed in their warming potential by compounds receiving less attention. Contact: Greg Kline Public Release: 17-Nov-2009
Human emissions rise 2 percent despite global financial crisis Despite the economic effects of the global financial crisis, carbon dioxide emissions from human activities rose 2 percent in 2008 to an all-time high of 1.3 tons of carbon per capita per year, according to a paper published today in Nature Geoscience. Contact: Imogen Jubb Public Release: 17-Nov-2009
Fossil fuel CO2 emissions up by 29 percent since 2000 The strongest evidence yet that the rise in atmospheric CO2 emissions continues to outstrip the ability of the world's natural "sinks" to absorb carbon is published this week in the journal Nature Geoscience. Contact: Simon Dunford Public Release: 16-Nov-2009
Glimpsing a greener future It's the year 2060, and 75 percent of drivers in the Greater Los Angeles area have hydrogen fuel cell vehicles that emit only water vapor. Contact: Jennifer Fitzenberger Public Release: 16-Nov-2009
NASA's TRMM satellite mapped 'Ida the Low's' rainfall from space The Tropical Rainfall Measuring Mission satellite known as "TRMM" has the ability to measure rainfall from space, and assessed the heavy rainfall from last week's coastal low pressure area, formerly known as "Ida" that drenched the US east coast. Contact: Rob Gutro Public Release: 16-Nov-2009
NASA's Terra satellite spots Tropical Cyclone Anja, the first of the southern season NASA's Terra satellite captured a stunning image of Anja, the first tropical cyclone of the southern Hemisphere cyclone season. When Anja formed on Saturday, Nov. 14, in the Southern Indian Ocean, about 330 miles south-southwest of Diego Garcia it was designated Tropical Cyclone 01S ("S" for south). By Sunday, Nov. 15, 01S had strengthened into a tropical storm and was named Anja. Contact: Rob Gutro Public Release: 16-Nov-2009
Carnegie Mellon customizing electric cars for cost-effective urban commuting Researchers at Carnegie Mellon University's Robotics Institute have launched a new community-based approach to electric vehicle design, conversion and operations. The new research project, ChargeCar, will explore how electric vehicles can be customized for an individual's commuting needs and how an electric vehicle's efficiency can be boosted and its battery life extended by using artificial intelligence to manage power. Contact: Byron Spice Public Release: 16-Nov-2009
Bacterial 'ropes' tie down shifting Southwest Researchers from Arizona State University have discovered that several species of microbes, at least one found prominently in the deserts of the Southwest, have evolved the trait of rope-building to lasso shifting soil substrates. Contact: Margaret Coulombe Public Release: 16-Nov-2009
Growth spurt in tree rings prompts questions about climate change Researchers Matthew Salzer and Malcolm Hughes of the University of Arizona's Laboratory of Tree-Ring Research and their colleagues have analyzed tree-rings from bristlecone pine trees at the highest elevations, looking for the reasons behind an extraordinary surge in growth over the past 50 years. Their findings appear in the Nov. 16 early online edition of Proceedings of the National Academy of Sciences. Contact: Maria Zacharias Public Release: 16-Nov-2009
Simple test could offer cheap solution to detecting landmines Scientists have developed a simple, cheap, accurate test to find undetected landmines. Contact: Catriona Kelly Public Release: 16-Nov-2009
New climate treaty could put species at risk Plans to be discussed at the forthcoming UN climate conference in Copenhagen to cut deforestation in developing countries could save some species from extinction but inadvertently increase the risk to others, scientists believe. Contact: Clare Ryan Public Release: 16-Nov-2009
Ancient high-altitude trees grow faster as temperatures rise Increasing temperatures at high altitudes are fueling the post-1950 growth spurt seen in bristlecone pines, the world's oldest trees, according to new research. The pines near treeline have wider annual growth rings for the period from 1951 to 2000 than for the previous 3,700 years. Regional temperatures, particularly at high elevations, have increased during the same 50-year time period. The finding is another example of changes in high-elevation ecosystems that are linked to warming temperatures. Contact: Mari N. Jensen Public Release: 16-Nov-2009
Cautious conservation: How to ensure that slowing global warming will protect biodiversity While it is clear that massive destruction of tropical rainforests poses a serious threat to the incredibly rich biodiversity found on Earth, other hazards are not so explicit. An international group of prominent scientists argue in the Nov. 17 issue of the journal Current Biology, a Cell Press publication, that the most promising new strategy to protect our planet may not live up to its full potential. The group calls for global implementation of careful and sensible protective policies. Contact: Cathleen Genova |