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Science
LEADING EDGE
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Thursday 21:00-21:30
Leading Edge brings you the latest news from the world of science. Geoff Watts celebrates discoveries as soon as they're being talked about - on the internet, in coffee rooms and bars; often before they're published in journals. And he gets to grips with not just the science, but with the controversies and conversation that surround it.
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LISTEN AGAINListen 30 min
Listen to 07 June
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GEOFF WATTS
Geoff Watts
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Thursday 07 June 2007
Image of a walrus
Researchers attached eight satellite tags to walruses in west Greenland.

Climate change and our cities

Geoff Watts returns with a new series of Leading Edge, and talks to Salvano Briceno, Director of the United Nations International Strategy for Disaster Reduction, about a meeting being held this week looking at the threat of natural disasters on our rapidly swelling urban communities.

NASA row

National Public Radio’s David Kestenbaum gives his thoughts on a climate change kerfuffle caused by comments made by NASA chief, Michael Griffin, last week.

Tracking the walrus

Rebecca Morelle joins the crew of a scientific vessel off the coast of Greenland, as they attempt to uncover where the walrus migrates to over the summer.

The walruses have been tagged, and are being tracked by satellite.  You can follow their progress by going to BBC Walrus Watch on the BBC news website.

Astronauts and zero gravity

Geoff Watts visits the University of Maryland, to see a giant swimming pool, that is being used to train astronauts on the effects of zero gravity.
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