Episode details
Available for over a year
The device that sucks the traffic pollution out of the air describe by its inventor Melvin Prueitt of the Los Alamos National Laboratory - and it generates electricity too. Also on the programme monitoring HFCs on the west coast of Ireland, how John Vanderplank brought a variety of passionflower back from the brink of extinction and the rediscovery of Edwards's pheasant in Vietnam.
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