Satellites shed light on global warming
... influence on climate. Because any increase in the melt rate of ice sheets and glaciers has the potential ... by climate warming, which caused prolonged summer melt seasons and the formation of extended melt water streams and ponds on the ice shelf surfaces," Rott ...Snowmelt monitored in the Baltic Sea watershed region in near real time
As spring melt of winter snow is underway in the Baltic Sea water...the water cycle, predicting when and how snow will melt and be released into local ecosystems is very useful. For instance several Finnish regional environm...AGU Journal highlights -- February 23, 2007
...m increasing manmade greenhouse gas emissions will melt ice caps and introduce freshwater to the North Atlantic, thereby slowing NADW and LSW formation. Weaver et al. ran several models with varying initial conditions and found that the strength of the AMOC always declines when greenhouse gases are increa...Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward
...n the valleys. We have seen lake levels rise, more melt from the surrounding glaciers and more aquatic ecosystems replacing soil-based ecosystems." Lyons sees what is happening now looking similar to what existed during the Eemian warming period a time 130,000 years ago before the last major glacial s...Common mechanisms for viral DNA replication
...in of replication. SV40 T-ag can also cause DNA to melt or unwind. In a new study published online in the open access journal PLoS Biology, Gretchen Meinke, Andrew Bohm, and colleagues report the crystal structure of the DNA-binding domain of SV40 T-ag on a DNA fragment derived from the viral origin of re...Other highlights in the January 3 JNCI
...otherapy drugs directly to tumors. These liposomes melt and release their contents when exposed to heat. In a new study, Ana M. Ponce and Mark W. Dewhirst, D.V.M., Ph.D., of Duke University Medical Center, and colleagues injected doxorubicin-containing liposomes into rats bearing fibrosarcomas. The res...Extreme life, marine style highlights 2006 ocean census
...marine recording of 407C, a temperature that would melt lead easily. Although the species resemble those around other vents, scientists want to study how, surrounded by near-freezing 2C water, their chemistry allows them to withstand heat pulses that approach the boiling point up to 80C. Shrimp were see...Climate changes are linked between Greenland and the Antarctic
...tant issue in the global warming debate, as icecap melt water can weaken the Atlantic currents. The research project: In the current issue of Nature, a joint effort of scientists from 10 European nations working together in the European Project for Ice Coring in Antarctica (EPICA) established a precise...NASA snow data helps maintain nation's largest, oldest bison herd
... in the park. Knowing when and where the snow will melt is key to whether the bison will stay within park boundaries. To better inform the management team, park officials use a model of snowpack dynamics developed by Watson and his staff to provide the most up-to-date projections on snowpack distribution ...USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
... nearshore ice, but in recent years, extensive ice melt has forced most polar bears to summer in deepwater ice habitat more than 200 km from the mainland coast. A smaller segment of the population is forced to use shoreline habitat. Other research suggests that prey resources may be diminished for polar b...Virginia Tech chemists create new polymers by adding DNA base pairs
...eated and permit the polymer to easily flow in the melt state, making it easier to process with less energy," said Long. "When the triblock copolymer cools, the pairs reconnect and provide desirable elasticity and molecular recognition possibilities." He said, "The concentration of base pairs can be ver...Study provides first-ever look at combined causes of North Atlantic and Arctic Ocean freshening
...et attrition of glaciers, and Arctic Ocean sea ice melt and export for the latter half of the 20th century...n and even on regional temperatures, and hence ice melt as well," says Peterson. "But what drives the NAO is the $64,000 question. Our inability to predict ...New Web database improves access to ionic liquid data
...the synthesis and use of ionic liquids--salts that melt below the boiling point of water. A large part of the interest is due to something ionic liquids don't have: a measurable vapor pressure at room temperature. With typical vapor pressures in the range of 10-10 pascal (10-14 psi), ionic liquids have e...Chewing up a key regulator of fat synthesis keeps mice lean despite a high-fat diet
...icially "on" during both fasting and feeding might melt away fat depots. And that's exactly what happened. Mice genetically engineered to express permanently elevated levels of TRB3 protein in fat tissue were 10-20 percent skinnier than normal mice. "Even when we put them on a high-fat diet, these mice ju...Woods Hole Research Center scientist furthering discussion of soil carbon decomposition
...riencing very rapid warming, causing permafrost to melt and some peatlands to dry out, thus potentially exposing huge stocks of previously frozen and waterlogged carbon to decomposition. We need to understand how much of this carbon that is stored in soils, peatlands, and permafrost is susceptible to los...Thousands of barges could save Europe from deep freeze
... water would continue to be pumped over the ice to melt it, forming a vast amount of cold, salty water that sinks and adds to the down-welling current to re-strengthen it. The estimated cost is about $50 billion. "When we first did this study we thought this idea was way too expensive--we were shocked by...Coming to the Arctic near you: The longer, hotter summer
...over land during the summer. First, the early snow melt increases the length of time the land surface can absorb heat energy. Second, the increase in snow-free ground permits increases in vegetation such shrubs and advances of treelines. "Continuation of current trends in shrub and tree expansion could f...How to avoid severe climate change discussed at CO2 conference
...the snow and ice in latitudes near the poles would melt and higher temperature bands would "march poleward" by more than 30 feet (10 meters) per day, affecting everything in the wake. If CO 2 from fossil-fuel resources is ultimately released to the atmosphere, the Antarctic and Arctic ice sheets would b......er, not just in the winter when salt is applied to melt snow, suggesting that salt is accumulating in the environment." If current trends continue over the next century, many surface waters could become unfit for human consumption and toxic to some aquatic life throughout the region. Reversing the prob...