Brown water, bats and streetlights, plant methane

This week in the Planet Earth Podcast: how browner drinking water presents problems for the water companies; the effect of street lighting on bats and their commuter routes; and...
18 July 2012
Presented by Richard Hollingham, Sue Nelson

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This week in the Planet Earth Podcast: how browner drinking water presents problems for the water companies; the effect of street lighting on bats and their commuter routes; and how ultraviolet light makes plants emit methane.

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