Daily non-political popular news in brief.
Ancient leaves point to climate change effect on insects
02-11-2008 · EurekAlert!Insects will feast and leafy plants will suffer if temperatures warm and atmospheric carbon dioxide increases, according to a team of researchers who studied evidence of insect feeding on fossil leaves from before, during and after the Paleocene-Eocene Thermal Maximum.
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- Ancient coral reef tells the history of Kenya's soil erosion
04-10-2007 · EurekAlert!
Coral reefs, like tree rings, are natural archives of climate change. But oceanic corals also provide a faithful account of how people make use of land through history, says Stanford University scientist Robert B. Dunbar. In a recent study published in Geophysical Research Letters, Dunbar and his colleagues used coral samples from the Indian Ocean to create a 300-year record of soil erosion in Kenya.
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- Midges send undeniable message -- Planet is warming
12-11-2006 · EurekAlert!
Small insects that inhabit some of the most remote parts of the United States are sending a strong message about climate change. New research suggests that changes in midge communities in some of these areas provide additional evidence that the globe is indeed getting warmer. Researchers created a history of changing midge communities for six remote mountain lakes in the western United States.
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- Study links success of invasive Argentine ants to diet shifts
12-17-2007 · EurekAlert!
The ability of Argentine ants to change from carnivorous insect eaters to plant sap-loving creatures has helped these invasive social insects rapidly spread throughout coastal California, according to a new study, displacing many native insects and creating ant infestations familiar to most coastal residents.
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- The striking deep current reversal in the tropical Pacific Ocean
11-13-2006 · EurekAlert!
In two oceanographic surveys conducted in the south-west Pacific Ocean, in October 1999 and April 2000, scientists from this IRD observed a sharp change in direction of equatorial intermediate current between these two dates. Such temporal variability is not new, but in this case its amplitude is strikingly strong. This effect will have to be taken into account if better understanding of ocean/atmosphere exchanges and climate variations is to be achieved.
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- Ancient climate secrets raised from ocean depths
02-01-2008 · EurekAlert!
Photos and samples taken of coral in the deepest recesses of the Southern Ocean investigated to date off Australia, are expected to yield valuable historical data on climate change.
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- Predicting catastrophic transitions
05-22-2007 · EurekAlert!
Complex systems, such as the earth's climate, coral reefs, oceans and socioeconomic systems, seem to respond little to gradual change until a critical tipping point is reached, after which the system may collapse completely. After such collapse, the original state of the system is hard to restore. Recovery time after small disturbances may predict coming collapse.
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- Arctic sea ice decline may trigger climate change cascade, says University of Colorado study
03-15-2007 · EurekAlert!
Arctic sea ice that has been dwindling for several decades may have reached a tipping point that could trigger a cascade of climate change reaching into Earth's temperate regions, says a new University of Colorado at Boulder study.
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- Insect gut detects unhealthy meal
12-20-2007 · EurekAlert!
Plant leaves and surfaces are teeming with microbial life, yet the insects that feed on plants lack adaptive immune systems to fend off any intruding microorganisms they eat along with their greens. Now research published in the online open access journal, BMC Biology shows how food-borne bacteria affect an insect's immune system.
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- AGU journal highlights -- Sept. 6, 2007
09-09-2007 · EurekAlert!
Solving the mystery of booming sand dunes, South Asian monsoon shifts south since 1400, Ozone-destroying chemicals wane, Robotic probes improve ocean analysis, Universal rule for repeating earthquakes?, Abrupt climate change clues in tropical Africa, Antarctic ice cores record ancient meteoritic events, New angle on solar wind’s magnetic reconnections, Understanding permeability in sea ice, Global observations of large oceanic eddies, Magnetic reconnection at large and small scales, and Interhemispheric coupling between stratosphere and mesosphere are papers featured in the upcoming issue of Geophysical Research Letters.
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- Plants point the way to coping with climate change
01-09-2007 · EurekAlert!
Scientists studying how plants have naturally evolved to cope with the changing seasons of temperate climates have made a discovery that could help us to breed new varieties of crops, able to thrive in a changing climate. It is an important step forward as it reveals how a species has developed different responses to different climates in a short period of time.
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