4: Liquid Gold: Alaska, Part2. The last part of Tom Feilden 's report on the controversial plan to drill for oil in the Alaskan Arctic, which has divided opinion between indigenous peoples and politicians alike.
But how much oil is there, and is it worth exploiting? Environmentalists claim there is, at most, a six-month supply, while the pro-drillers say there's enough to last 25 years. Will the economic benefits outweigh any environmental damage that may be caused if oil is raised from the Arctic National
Wildlife Refuge? Tom Feilden examines the issues. Producer Karen Gregor.