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Did Mayas Use 2,500-Year-Old Chocolate as Condiment or Beverage?
Archaeologists say they have found traces of 2,500-year-old chocolate on a plate in the Yucatan peninsula, the first time...
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Century of Drought May Be Ahead
A drought that gripped western North America from 2000 to 2004 was the worst since the Middle Ages, but...
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What We Know About Climate Change and Drought
As farmers in the United States slog through the country’s largest drought in 50 years, a lot of people...
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Global Warming’s Terrifying New Math
Three simple numbers that add up to global catastrophe - and that make clear who the real enemy is
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U.K. Farmers Adapt to Climate Change
Farmers, used to betting on the weather, are changing their tactics to cope with changes in the rules of...
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Rio Environment Meeting Focuses On ‘Energy For All’
Diplomats and activists from around the world are meeting in Rio de Janeiro to talk about how the planet’s...