Environment

environment

Pollutants threaten the Everglades' future

Pick Your Poison: If One Pollutant Doesn’t Take Down the Everglades, Another Might

20 Feb 2009

As Green As It Gets: Algae Biofuels

It’s hard to think of a humbler organism than algae, or a less-likely prospect to become savior of our energy future. “Algae fuel” does not conjure up images of power, big business or high-tech gadgetry; it suggests a modest picture of a murky pond covered by a greasy, greenish film. But unassuming algae, some researchers think, have the potential to become the ultimate in “green” fuel, powering everything from cars to jets — and perhaps putting an end to one of the more bitter battles in the biofuels industry: the “food versus fuel” debate over how best to use arable lands.

13 Feb 2009

Obama asks EPA to reconsider state-set emissions standards

Just a week into his presidency, Barack Obama has already set out to reverse several of Bush’s policies, including policies on long-contentious climate and energy issues.

26 Jan 2009

Fish guts can alter ocean's chemistry

The ocean’s surface waters contain many more microorganisms than fish — and so for years, the carbonate-shelled microorganisms were thought to be the main contributor to the carbonate chemistry in deep ocean waters. Now, new research suggests that the tiny pellets that most bony fish produce in their guts can affect the chemistry of the oceans.

22 Jan 2009

AGU: How scientists should talk climate change

Blogging on EARTH

SAN FRANCISCO — The Intergovernmental Panel on Climate Change's Fourth Assessment report last year showed a strong consensus among scientists that the climate is warming, thanks largely to anthropogenic greenhouse gases. So one has to wonder why scientists are still struggling to get that message through to both policymakers and stakeholders.

17 Dec 2008

Benchmarks: December 3, 1984: Bhopal gas leak kills thousands

By Cassandra Willyard

On Dec. 3, 1984, Aziza Sultan woke to the sound of coughing. When she opened her eyes, she could see that the room was filled with a white haze. She heard people shouting “Run, run.” Then she too began to cough. Each breath burned her lungs.

03 Dec 2008

Wal-Mart to use wind energy

Wal-Mart’s reputation for cheap prices precedes it, but recently the retailer showed its greener side when it announced plans to supply 15 percent of its total energy load with wind power.

The energy will come from Texas wind farms constructed by Duke Energy, which will go online this spring, a Wal-Mart press release said.

That avoids releasing more than 139,000 metric tons of carbon dioxide emissions per year — the equivalent of taking about 25,000 cars off the road, Wal-Mart said.

25 Nov 2008

Montreal Protocol affects more than just ozone

In 1987, nearly 200 nations signed the Montreal Protocol to restrict the use of ozone-depleting chemicals. The international treaty helped keep the ozone hole over Antarctica from growing further, preventing an increase in harmful radiation reaching Earth’s surface. Twenty years later, new research suggests that the treaty helped the planet dodge more than one bullet: The Montreal Protocol also prevented significant regional climate change.

13 Nov 2008

USGS finds giant gas hydrate deposits on North Slope

Buried beneath Alaska's North Slope are about 85.4 trillion cubic feet of technically recoverable natural gas hydrates, according to a new U.S. Geological Survey assessment. That would be a significant source of energy to add to the U.S. energy mix — enough natural gas to heat 100 million homes for 10 years, Secretary of the Interior Dirk Kempthorne announced Wednesday.

12 Nov 2008

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