01:32Science In Action20/08/2010BBC World Service Duration: 28 minutes Sat 21st Aug 2010, 01:32 on BBC World Service OnlineAvailable for over a yearListen nowOil plume measured; melting Russian permafrost leads to leaking methane; solving the mysterious nature of light; Nickel allergy explained; muscle weakness in astronauts.GenresFactualScience & NatureFormatsMagazines & ReviewsBrandScience In Action Source: BBC Online