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Using a hypsometer to measure tree height (Ellen Whitman)
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Theme music bed copyright Raphaël Gluckstein, Creative Commons License by-nc-nd-2.0
Dr. Judit Smits travels to Bangladesh to conduct a clinical trial using Saskatchewan lentils to counteract arsenic-tainted well water.
Vincent Hanlon climbs giant Sitka spruce in B.C. to evaluate possible genetic differences between the top and bottom of the tree.
Sara Cannon measures and photographs equatorial reefs to determine their resilience.
Ellen Whitman ventures into the forest to assess the effect of devastating forest fires.
Modern feminism needs to 'stop blaming men,' says Camille Paglia
'Thinking through drawing': Bob Mankoff explains the power and influence of cartoons
Jane Goodall's shift from research to activism
Is Silicon Valley full of psychopaths?