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Smithsonian scientists connect climate change, origins of agriculture in Mexico
06-01-2007 · EurekAlert!New charcoal and plant microfossil evidence from Mexico’s Central Balsas valley links a pivotal cultural shift, crop domestication in the New World, to local and regional environmental history.
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Keywords: smithsonian, scientists, connect, climate, change, origins, agriculture, mexico, scientist, origin
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- Dung happens and helps scientists
02-15-2008 · EurekAlert!
A scientist at Northern Arizona University is in charge of the largest animal dung collection in the world, used for clues about animal evolution and extinction, Ice Age existence and climate change. Researcher Jim Mead admits it is a bizarre resource, but he is one of many around the globe who access dung for DNA information. Mead, a dung authority, continues to grow the collection with specimens from as far away as Siberia.
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- Scientists investigate impact of climate change on India's monsoon season
03-08-2007 · EurekAlert!
Scientists at the University of Liverpool are investigating the anticipated effects of climate change on India's monsoon season and the impact that alterations in India's water cycle will have on the country's people, agriculture and wildlife.
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- Toll of climate change on world food supply could be worse than thought
12-03-2007 · EurekAlert!
Global agriculture, already predicted to be stressed by climate change in coming decades, could go into steep, unanticipated declines in some regions due to complications that scientists have so far inadequately considered, say three new scientific reports. The authors say that progressive changes predicted to stem from 1- to 5-degree C temperature rises in coming decades fail to account for seasonal extremes of heat, drought or rain, multiplier effects of spreading diseases or weeds, and other ecological upsets.
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- The insides of clouds may be the key to climate change
02-17-2007 · EurekAlert!
As climate change scientists develop ever more sophisticated climate models to project an expected path of temperature change, it is becoming increasingly important to include the effects of aerosols on clouds, according to Joyce E. Penner, a leading atmospheric scientist at the University of Michigan.
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- Drought limits tropical plant distributions, scientists at the Smithsonian report
05-02-2007 · EurekAlert!
Drought tolerance is a critical determinant of tropical plant distributions, researchers working at the Smithsonian Tropical Research Institute in Panama report in the journal Nature, May 3. In a novel coupling of experimental measurements and observed plant distributions across a tropical landscape, drought tolerance predicted plant distributions at both local and regional scales. This mechanism to explain a common observation will contribute significantly to models of land use and climate change.
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- New report presents strongest evidence yet of human link to global warming, Duke expert says
02-02-2007 · EurekAlert!
Evidence presented in the first phase of the IntergovernmentalPanel on Climate Change's 4th Assessment Report, released today in Paris, paints the clearest picture yet that human-derived greenhouse gases are playing a significant role in observed global warming, says a Duke University scientist who coauthored one of the report's main chapters.
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- Scientists warn of climate change risk to marine turtles
02-19-2007 · EurekAlert!
North American marine turtles are at risk if global warming occurs at predicted levels, according to scientists from the University of Exeter. An increase in temperatures of just one degree Celsius could completely eliminate the birth of male turtles from some beaches. A rise of three degrees Celsius would lead to extreme levels of infant mortality and declines in nesting beaches across the USA.
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- Latest IPCC report highlights need for integrated climate/human behavior models
04-06-2007 · EurekAlert!
How can humans adapt to climate change without adding even more stress to the environment? Scientists are now looking at ways to integrate the human dimension of climate change -- the choices we need to make to adapt to a changing global climate -- with the sophisticated climate prediction models used for the IPCC Assessment Reports. The goal: To evaluate the best ways forward.
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- Satellites shed light on global warming
04-27-2007 · European Space Agency (ESA)
As climate change continues to make headlines across the world, participants at the 2007 Envisat Symposium this week are hearing how Earth observation satellites allow scientists to better understand the parameters involved in global warming and how this is impacting the planet.
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- Melting of the Greenland ice cap may have consequences for climatic change
05-07-2007 · EurekAlert!
At the last ice age, before the great ice sheets of the Arctic Ocean began to melt, early sporadic episodes of melting of the old ice sheet which covered the British Isles had already begun to affect the circulation of the ocean currents. Based on this observation, scientists consider that the acceleration of the melting of the Greenland ice cap could play an important role in the development of climate change.
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