All plants need nitrogen to grow, and a new study says some plants get this nutrient from a surprising source. Conventional wisdom believes nitrogen for plants starts in the air and is converted by microbes in the soil into a usable form. But a report in the journal Nature finds that some nitrogen comes directly from rock. This discovery has implications for global warming.
Actor James Gandolfini, 51, has reportedly died. Variety magazine reports that he suffered a "sudden stroke." The cause of death is not yet known with certainty, but HBO says the actor may have suffered a heart attack.
The prize is sometimes called the "Nobel Prize for food and agriculture." And this year's winners include Monsanto executive Robert Fraley, a pioneer in genetically engineered crops. If there's a single person who personifies the company's controversial role in American agriculture, it's probably Fraley.
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