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Beer or Biofuels Headlines all over the world proclaim that food — and beer — prices are climbing as supplies are short because of biofuels production. No doubt beer and food are costing more, but are biofuels really to blame? Megan Sever |
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Salt of the Earth For nearly a century, iodine has been added to table salt to combat iodine deficiency. Now health officials in Guyana are using salt to deliver a parasite-killing drug in the hopes of eradicating a debilitating disease. But will it work? Cassandra Willyard Summer Road Trip: |
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Environmental Geographer and Genius Grant Winner Ruth DeFries
BENCHMARKS
June 7, 1692: Earthquake Levels Port Royal, Jamaica
Print Exclusive
TRENDS & INNOVATIONS
Resuscitating Ocean Thermal Energy Print Exclusive
Imagine a power plant that generates a never-ending supply of electricity without emitting carbon dioxide. It’s a real possibility, and researchers are working to make it happen in Puerto Rico and elsewhere.
Erin Wayman
Oil and War
Oil is not as important to U.S. national security as politicians might think. The United States needs to understand that trying to influence oil supply with military force is counterproductive.
Clifford Singer
GEOLOGIC COLUMN
The Agony of Victory
China has been working hard to clear the air in Beijing before the Olympics begin in two months. But whether they’ve done enough remains a subject for debate.
Fred Schwab
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Check out this month's Energy Notes!
ON THE COVERPiles of salt harvested from the world’s largest salt flat, the Salar de Uyuni in Bolivia, dry in the sun. Photo is by Cassandra Willyard.
NEXT MONTH
Meteorite Strikes Peru;
Traveling to Guilin, China;
Tracking Hurricanes
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