Tree ring expert Kevin Anchukaitis, of the tree ring lab at the Lamont-Doherty Earth Observatory, part of Columbia University’s Earth Institute, talks about the information available in tree rings. And Colin Chartres, the director general of the International Water Management Institute, talks to Lynn Peeples about water issues.
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Source: http://www.scientificamerican.com/podcast/episode.
ScientificAmerican.com: Tree Ring Science and Tomorrow’s Water
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