Planet Earth online

The ozone hole, starlings in Fair Isle, forest fires


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This week in the Planet Earth Podcast: Richard Hollingham talks to one of the scientists behind the discovery of the ozone hole to find why it's still there; how research on starlings on an island famous for its sweaters could help bird conservationists; and why forest fires in North America affect people thousands of miles away in Europe.
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Planet Earth onlineBy Natural Environment Research Council