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Your own private global warming
June 30, 2009Measuring the effects of temperature increases in the Antarctic fauna
A group of researchers from the British Antarctic Survey have collected individuals from a wide range of species commonly found in Antarctic waters and subjected them to increasing levels of water temperature to learn how each species is prepared to cope with the conditions that they are likely to experience in the future. The study showed that several of these species are already living really close to their upper temperature range, and that further increases caused by global warming could easily provoke serious ecological imbalances in this region. These results will be presented by Dr. Lloyd S. Peck at the Society of Experimental Biology Annual Meeting in Glasgow on Tuesday 30th June 2009.
The researchers found that, for a given species, smaller individuals were able to tolerate higher temperatures compared to larger ones. Since larger individuals are the ones more likely to have reached sexual maturity, their vulnerability to temperature change could seriously damage population levels within a few generations. In addition, since active species such as predators fared better than sessile ones when dealing with temperature increase, a disruption in the food chain could add up to the direct effect of global warming to cause disruptions earlier and to greater extents in the Antarctic marine ecosystem.
Society for Experimental Biology
Society for Experimental Biology
Global Warming Current Events and Global Warming News RSSOceans' 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.
Research challenges for understanding landscape changes identified
Nine research challenges and four research initiatives that are poised to advance the study of how Earth's landscapes change were unveiled today in a new report by the National Research Council.
Study: Sea stars bulk up to beat the heat
A new study finds that a species of sea star stays cool using a strategy never before seen in the animal kingdom. The sea stars soak up cold sea water into their bodies during high tide as buffer against potentially damaging temperatures brought about by direct sunlight at low tide.
Drug industry, nonprofits join forces to fight world's neglected diseases
Drug companies and nonprofit organizations are joining forces to develop new drugs and vaccines to target so-called "neglected" diseases that claim millions of lives in the developing world each year.
Health care accounts for 8 percent of US carbon footprint
The American health care sector accounts for nearly a tenth of the country's carbon dioxide emissions, according to a first-of-its-kind calculation of health care's carbon footprint.
Cave Study Links Climate Change to California Droughts
California experienced centuries-long droughts in the past 20,000 years that coincided with the thawing of ice caps in the Arctic.
Reducing greenhouse gases may not be enough to slow climate change
Because land use changes are responsible for 50 percent of warming in the US, policymakers need to address the influence of global deforestation and urbanization on climate change, in addition to greenhouse gas emissions.
Past climate of the northern Antarctic Peninsular informs global warming debate
The seriousness of current global warming is underlined by a reconstruction of climate at Maxwell Bay in the South Shetland Islands of the Antarctic Peninsula over approximately the last 14,000 years, which appears to show that the current warming and widespread loss of glacial ice are unprecedented.
Climate variability impacts the deep sea
Deep-sea ecosystems occupying 60% of the Earth's surface could be vulnerable to the effects of global warming warn scientists writing in the Proceedings of the National Academy of Sciences.
Interactions with aerosols boost warming potential of some gases
For decades, climate scientists have worked to identify and measure key substances -- notably greenhouse gases and aerosol particles -- that affect Earth's climate.
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