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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.
as it happens
'Failure was not an option,' says Georgia firefighter who caught girl dropped from blazing building
Is Woody Allen's time up?
Is there a generational divide in the #MeToo movement?
George Stroumboulopoulos looks back on The Cranberries frontwoman Dolores O'Riordan's career