Saturday, March 16, 2013

New Research Tracks 11,300 Years of Climate


Winnipeg Free Press
Scientists have a good sense of what the Earth’s climate has been like over the past handful of centuries. But what about many thousands of years back? Details here.

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The Fertilizer Falacy - Pushing Yields up and Profit Down

Understanding Agriculture  Nitrogen fertilizer is applied to winter wheat.  Photo by Michael Trolove. There’s a deeply held belief in modern...