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Avatar Posted by diggit 406 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
Greenpeace this week ripped into Apple for failing to make "early progress" with the iPhone toward the company's stated goals for ecofriendliness. The report touched off a debate over whether the hugely popular mobile device is safe for its users [ Read More ] »
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Avatar Posted by diggit 406 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
Global negotiations on stabilizing greenhouse gas emissions in the period after 2012 will commence in Bali in December. The main emitters--including Brazil, Canada, China, the European Union, India, Mexico, South Africa and the U.S.--have recently a [ Read More ] »
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Avatar Posted by diggit 406 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
Global negotiations on stabilizing greenhouse gas emissions in the period after 2012 will commence in Bali in December 2007. The main emitting nations--including Brazil, Canada, China, the European Union, India, Mexico, South Africa and the U.S.--ha [ Read More ] »
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Avatar Posted by diggit 412 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
The two reactors at the South Texas nuclear power plant, an hour southwest of Houston, last year churned out 21.37 billion kilowatt-hours. By 2015, its majority owner, New Jersey-based NRG Energy, hopes to at least double that capacity if it gets pe [ Read More ] »
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Avatar Posted by diggit 413 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
In 2004 the World Conservation Union placed three vultures--the long-billed, the slender-billed and the Oriental white-backed--on the critically endangered list. Populations of all three reached nearly 40 million in India and South Asia in the early [ Read More ] »
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Avatar Posted by diggit 413 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
For years, the automobile industry has argued that congressional attempts to make cars and trucks more fuel-efficient would compromise passenger safety. The argument is based on the premise that the Corporate Average Fuel Economy (CAFE) standards im [ Read More ] »
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Avatar Posted by diggit 413 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
More than 30 states have passed or are considering “renewable energy portfolio standards” that require utility companies to generate some portion of their electricity from renewable sources. Geothermal power plants, which tap hot subterranean water [ Read More ] »
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Avatar Posted by diggit 413 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: Earth & Environment
Jose Maliekal, an associate professor of earth sciences at the State University of New York at Brockport, explains:
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Avatar Posted by diggit 414 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: earth & environment
Earth is roughly 4.5 billion years old, but her early eons were tempestuous. Not even rock survives from the first 500 million years of her life--an eon known as the Hadean--because geologists speculate the planet's surface boiled and bubbled with [ Read More ] »
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Avatar Posted by diggit 414 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: chemistry
Sunscreens shield human skin with chemicals that either absorb or deflect damaging ultraviolet rays, most often titanium dioxide or the zinc oxide known best as the white stuff lifeguards slather on their noses. But it seems they (and others) don't [ Read More ] »
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Avatar Posted by diggit 415 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: society & policy
The most destitute regions of the planet--in Africa, Central Asia, the Andes and a few other places--are not merely poor: they are seemingly trapped in poverty and prone to internal violence and political collapse. The regional distribution of these [ Read More ] »
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Avatar Posted by diggit 416 days ago (http://www.sciam.com)
Category: Earth & Environment | Tags: health
You know about choking, toxic emissions from cars, cigarettes and coal-burning plants. But did it ever occur to you that your handy dandy printer might be a source of lung-damaging pollutants? [ Read More ] »
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