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Space & Earth science / Environment news 1234

First Analysis of the Water Requirements of a Hydrogen Economy

October 18, 2007 | User rating: 4.3 / 5 after 126 vote(s) | User comments: 28

One of the touted benefits of the futuristic US hydrogen economy is that the hydrogen supply—in the form of water—is virtually limitless. This assumption is taken for granted so much that no major study has ...


Giant garbage patch floating in Pacific

October 22, 2007 | User rating: 3 / 5 after 294 vote(s) | User comments: 18

An enormous island of trash twice the size of Texas is floating in the Pacific Ocean somewhere between San Francisco and Hawaii.


Scientists debate the accuracy of Al Gore's documentary 'An Inconvenient Truth'

April 14, 2008 | User rating: 3 / 5 after 49 vote(s) | User comments: 11

There is no question that Al Gore’s 2006 documentary An Inconvenient Truth is a powerful example of how scientific knowledge can be communicated to a lay audience. What is up for debate is whether it accurately presents ...


Scientists urged to make a stand on climate change

April 24, 2008 | User rating: 2.5 / 5 after 17 vote(s) | User comments: 10

Scientists must work harder at making the public aware of the stark difference between good science and "denialist spin".


No convincing evidence for decline in tropical forests

January 07, 2008 | User rating: 4 / 5 after 22 vote(s) | User comments: 7

Claims that tropical forests are declining cannot be backed up by hard evidence, according to new research from the University of Leeds.


Emissions irrelevant to future climate change?

April 28, 2008 | User rating: 4.2 / 5 after 22 vote(s) | User comments: 7

Climate change and the carbon emissions seem inextricably linked. However, new research published in BioMed Central’s open access journal Carbon Balance and Management suggests that this may not always hold true, although ...


Thirsty hybrid and electric cars could triple demands on scarce water resources

March 10, 2008 | User rating: 3.4 / 5 after 13 vote(s) | User comments: 6

Eco-minded drivers in drought-prone states take note: A new study concludes that producing electricity for hybrid and fully electric vehicles could sharply increase water consumption in the United States. ...


US rush to produce corn-based ethanol will worsen 'dead zone' in Gulf of Mexico

March 10, 2008 | User rating: 4.5 / 5 after 35 vote(s) | User comments: 6

The U.S. government’s rush to produce corn-based ethanol as a fuel alternative will worsen pollution in the Gulf of Mexico, increasing a “Dead Zone” that kills fish and aquatic life, according to University of British Columbia ...


U.N. meteorologist predicts cooler summer

April 04, 2008 | User rating: 2.4 / 5 after 7 vote(s) | User comments: 6

A U.N. meteorologist says the cooling effect of the La Nina current in the Pacific will likely mean slightly lower temperatures across the world this year.


Questioning nuclear power's ability to forestall global warming

April 21, 2008 | User rating: 2.8 / 5 after 22 vote(s) | User comments: 6

Rising energy and environmental costs may prevent nuclear power from being a sustainable alternative energy source in the fight against global warming, according to a study in the April 1 issue of ACS’ Environmental ...


Rise in atmospheric CO2 accelerates as economy grows, natural carbon sinks weaken

October 22, 2007 | User rating: 4.2 / 5 after 26 vote(s) | User comments: 5

Human activities are releasing carbon dioxide faster than ever, while the natural processes that normally slow its build up in the atmosphere appear to be weakening. These conclusions are drawn in a new study in the early ...


Ban: Warm Antarctica temps show eco-issues

November 13, 2007 | User rating: 1.6 / 5 after 5 vote(s) | User comments: 5

U.N. Secretary-General Ban Ki-moon said warmer temperatures in Antarctica highlight the dangers of climate change and the need to address them.


Coral Reefs Unlikely to Survive in Acid Oceans

December 13, 2007 | User rating: 3.2 / 5 after 21 vote(s) | User comments: 5

Carbon emissions from human activities are not just heating up the globe, they are changing the ocean’s chemistry. This could soon be fatal to coral reefs, which are havens for marine biodiversity and underpin ...


2007 was tied as Earth's second warmest year

January 16, 2008 | User rating: 2.7 / 5 after 14 vote(s) | User comments: 5

Climatologists at the NASA Goddard Institute for Space Studies (GISS) in New York City have found that 2007 tied with 1998 for Earth’s second warmest year in a century.


Human activities contribute to California's global warming

January 18, 2008 | User rating: 3.1 / 5 after 13 vote(s) | User comments: 5

Over the past 85 years, humans have helped shape California climate during certain seasons. But that’s not necessarily good.


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