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World's largest aerosol sensing network has leafy origins
Twenty years ago, Brent Holben was part of a NASA team studying vegetation from space. In an unlikely career twist, his research morphed into the study of a critical, if overlooked, subplot in the story of climate change. view more (2009-06-30)
Ancestors of African Pygmies and neighboring farmers separated around 60,000 years ago
All African Pygmies, inhabiting a large territory extending west-to-east along Central Africa, descend from a unique population who lived around 20,000 years ago, according to an international study led by researchers at the Institut Pasteur in Paris. view more (2009-04-10)
Amazon Basin sediment accumulation influenced by La Ni'帶
Enormous quantities of sediment are deposited in the flood-plains traversed by the Amazon and its tributaries in times of flooding. Scientists have hitherto considered the sedimentation rate to be generally constant with time. Research conducted jointly by the IRD, the Universities of Washington1 and California2 and the Bolivian National... view more... (2003-11-21)
Ancient raptors likely feasted on early man, study suggests
A new study suggests that prehistoric birds of prey made meals out of some of our earliest human ancestors. view more (2006-08-30)
Changes to land cover may enhance global warming in Amazon, reduce it in midlatitudes
New simulations of 21st-century climate show that human-produced changes in land cover could produce additional warming in the Amazon region comparable to that caused by greenhouse gases, while counteracting greenhouse warming by 25% to 50% in some midlatitude areas. view more (2005-12-09)
New source for biofuels discovered
A newly created microbe produces cellulose that can be turned into ethanol and other biofuels, report scientists from The University of Texas at Austin who say the microbe could provide a significant portion of the nation's transportation fuel if production can be scaled up. view more (2008-04-24)
Ambient light influences the evolution of colour signals
In light-contrasted ecosystems, ambient light and background colours influence the evolution of animal coloration. Because maximal conspicuousness is achieved for signals which are rich in the colours of ambient light but poorly reflected by background, different signals will be cryptic or conspicuous at different heights in tropical rainforest.... view more... (2004-03-18)
Amazon Basin sediment accumulation influenced by La Ni'帶
Continental-scale rivers can transport enormous sediment loads. In periods of flood, a proportion of these is deposited on flood-plains. In the Amazon Basin, crossed by the Earth's largest river, great volumes of such sequestered sediment accumulations occur. This is especially so in the Llanos, the Bolivian lowland flood-plains which stretch from... view more... (2003-10-10)
Invititation to the Media - Soils as carbon sinks-a breathing space in the race against global warming?
Can we use land carbon sinks as a way to buy time for the restructuring of our energy generation? "We estimate soil carbon sinks could mitigate 8% of the EU`s emissions if major changes were made in land use and agricultural management ," says Professor David Powlson of IACR Rothamsted. However; How many of the land-use options are practicable?... view more... (2002-06-26)
Traditional Christmas snack under threat
An international group of scientists is warning that the traditional Christmas snack of Brazil nuts could be under threat if intensive harvesting practices continue in persistently exploited areas. Writing in this week's edition of the international journal Science (19 December 2003) the main author of the report, Dr Carlos Peres of the... view more... (2003-12-16)
Picky female frogs drive evolution of new species in less than 8,000 years
Picky female frogs in a tiny rainforest outpost of Australia have driven the evolution of a new species in 8,000 years or less, according to scientists from the University of Queensland, the University of California, Berkeley, and the Queensland Parks and Wildlife Service. view more (2005-10-31)
Bizarre walking bat has ancient heritage
A bizarre New Zealand bat that is as much at home walking four-legged on the ground as winging through the air had an Australian ancestor 20 million years ago with the same rare ability, a new study has found. view more (2009-07-29)
Looking for privacy in the clouds
Millions of Internet users have been enjoying the fun -- and free -- services provided by advertiser-supported online social networks like Facebook. But Landon Cox, a Duke University assistant professor of computer science, worries about the possible down side -- privacy problems. view more (2009-10-14)
Deep-rooted plants have much greater impact on climate than experts thought
Trees, particularly those with deep roots, contribute to the Earth's climate much more than scientists thought, according to a new study by biologists and climatologists from the University of California, Berkeley. view more (2006-01-12)
Monkeypox in the USA
A review in the February issue of The Lancet Infectious Diseases describes the outbreak of monkeypox that occurred in the USA in May 2003. Monkeypox is caused by a virus that is related to variola, the causative agent of smallpox. According to the authors of the review, Daniel B Di Giulio and Paul B Eckburg (Stanford University Medical School,... view more... (2004-01-07)
New fossil plant discovery links Patagonia to New Guinea in a warmer past
Fossil plants are windows to the past, providing us with clues as to what our planet looked like millions of years ago. view more (2009-11-11)
Growth in Amazon cropland may impact climate and deforestation patterns
Scientists using NASA satellite data have found that clearing for mechanized cropland has recently become a significant force in Brazilian Amazon deforestation. This change in land use may alter the region's climate and the land's ability to absorb carbon dioxide. view more (2006-09-20)
Biosphere 2 experiment shows how fast heat could kill drought-stressed trees
Widespread die-off of piñon pine across the southwestern United States during future droughts will occur at least five times faster if climate warms by 4 degrees Celsius, even if future droughts are no worse than droughts of the past century, scientists have discovered in experiments conducted at the University of Arizona's Biosphere 2. view more (2009-04-14)
Southampton-authored medical book that 'retains its humanity' wins Royal Society of Medicine book award
The Oxford Handbook of General Practice, written by Dr Chantal Simon, Dr Hazel Everitt and Jon Birtwistle from the University of Southampton's School of Medicine, and co-written by Dr Brian Stevenson, a Hampshire GP, has won this year's Royal Society of Medicine and Society of Authors book prize for the best new authored medical book in 2002/2003.... view more... (2003-11-11)
Rain forest protection works in Peru
A new regional study shows that land-use policies in Peru have been key to tempering rain forest degradation and destruction in that country. view more (2007-08-10)
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