Bleached coral, Great Barrier Reef, Australia
11.20.09
Economists put a price tag on the benefits of coral reefs
How much are coral reefs worth? Economists put a price tag on their benefits and say they're valuable.
11.20.09
The hidden costs of fossil fuels - and biofuels, too
The 'hidden' costs of burning fossil fuels and biofuels aren't factored into their market prices, but someone has to pay them.
11.18.09
Earth Talk – Little cigarette butts make big litter impact
When cigarette butts become litter, they have a negative impact on the environment. The filters are made of a plastic that can take up to 10 years to decompose.
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11.17.09 Saving wildlife in a warmer worldA warmer world will have adverse effects on wildlife. We can help save animals, but it will take savvier approaches, scientists say. |
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11.17.09 Ways to help wildlife adapt to a warmer worldAs the world gets warmer, strategies for helping wildlife adapt. |
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11.16.09 Earth Talk - Little is known of hard-to-track orcasOrcas are very susceptible to pollution, due to their place at the top of the ocean food chain. But little is known of their habits since they're hard to track. |
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11.12.09 China confronts global warming dilemmaChina, the world leader in both economic growth and carbon emissions, faces the dilemma of how to respond to the challenges of global warming while not harming its robust economy. |
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11.10.09 The secret life of ancient treesAn ancient evergreen tree reveals its secret life to scientists, helping them decode climate history. Watch video |
