Monthly archives: Novembro 2008

Novembro

29
2008

Influence Of Climate Warming On The Increase In Tick-borne Diseases

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-11.29.08- Rises in the ambient temperature modify the behavior of dog ticks and increase their affinity for humans. There is thus a risk that episodes of global warming may be associated with epidemics of tick-borne diseases. Leia mais


Novembro

29
2008

Accelerated Melting Of Continental Icepacks Is Major Reason For Rise In Sea Level Between 2003 And 2008

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-11.29.08- Researchers have discovered that the accelerated melting of continental icepacks is the major reason for the rise in sea level over the 2003 para 2008 period, something which has minimized the effect of thermal expansion of seawater. Leia mais


Novembro

29
2008

Flooding in Costa Rica

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-11.29.08- Persistent and heavy rain has lashed many parts of southern Central America over the past few days, with Costa Rica being hit hardest. Pelo menos 46, 000 people have been rendered homeless from devastating flooding with damage running into tens of millions of U.S dollars. Leia mais


Novembro

29
2008

New rifts form on Antarctic ice shelf

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-11.29.08- Scientists have identified new rifts on an Antarctic ice shelf that could lead to it breaking away from the Antarctic Peninsula, the European Space Agency said. A satellite image of the Wilkins Ice Shelf, which could break away from the Antarctic Peninsula. A satellite image of the Wilkins Ice Shelf, which could break away from the Antarctic Peninsula. Leia mais


Novembro

28
2008

Global Warming Is Changing Organic Matter In Soil: Atmosphere Could Change As A Result

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-11.28.08- Scientists at the University of Toronto Scarborough have published research findings in the journal Nature Geoscience that show global warming actually changes the molecular structure of organic matter in soil. “Soil contains more than twice the amount of carbon than does the atmosphere, yet, until now, scientists haven’t examined this significant carbon pool closely,” says Myrna J. Simpson, principal investigator and Associate Professor of Environmental Chemistry at UTSC. Leia mais


Novembro

28
2008

Torrential rain continues to lash southern Brazil

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-11.27.08- Mais do que 1.5 million people across Brazil have now been affected by some of the worst flooding in history over the past two months. Torrential rain and landslides have let to the displacement of over 50,000 people across the south of the country. Leia mais


Novembro

28
2008

A stormy start to Australia�s summer

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-11.28.08- For the past two weeks, parts of Australia have been hit by a series of violent storms, bringing torrential rain and gale force winds. In the Blue Mountains of New South Wales, 10cm of snow fell, which is unseasonably late in the year. Leia mais


Novembro

28
2008

Endangered sea turtles killed by cold snap

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-11.27.08- Every year, endangered sea turtles wash up on the beaches of MassachusettsCape Cod Bay, freezing and near death. Most are nursed back to health. This fall, though, an unusually early, long cold snap and lashing winds have caused more Kemp’s Ridley sea turtles, the most endangered sea turtles in the world, to wash ashore dead, says Tony LaCasse, spokesman for the New England Aquarium in Boston, which rehabilitates sick turtles and returns them to the wild. Leia mais


Novembro

26
2008

Forests May Play Overlooked Role In Regulating Climate

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-11.25.08- When sunlight reaches the Earth’s surface it can either be absorbed and converted to heat or reflected back to outer space, where it doesn’t influence the Earth’s temperature. Scott Ollinger, a professor at the UNH Institute for the Study of Earth, Oceans, and Space and the department of Natural Resources and the Environment, and colleagues have discovered that, of the total amount of sunlight that falls on forests, the fraction that gets reflected back to space is directly related to levels of nitrogen in their foliageLeia mais


Novembro

26
2008

Denmark Works To Cut Carbon Dioxide Emissions By 50%

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-11.26.08- For two days 160 scientists, businesspeople and government officers have been working to answer the question: What is the fastest way to an energy system with much less CO2 emissions? The first step is to integrate an interconnected intelligent power grid in Europe. Denmark can become independent of fossil fuels by implementing efficiency improvements in all sectors including power stations, houses, industry and transport. At the same time, the share of renewable energy must be increased with more wind energy and increased use of biomass. In the transport sector we can replace fossil fuels with biofuels and we can also use electric cars which can be integrated into the power gridLeia mais