Greenpeace activists have boarded on Thursday morning an icebreaker off Sweden's southeast coast, staging the second such action this week to protest oil and gas exploration in the Arctic Ocean, AP reported. Greenpeace said six activists climbed onboard the Shell Oil Co.-contracted Nordica after approaching it in rubber boats. About half of them have locked themselves onto the icebreaker. The organization is urging Shell to abandon plans to open up the Arctic for oil drilling, warning of a possible oil spill. Earlier this week, Greenpeace staged a similar action as Nordica was departing from Finland, delaying it by 10 hours. Two Finnish icebreakers, the Fennica and Nordica, are contracted to support oil and gas production operations on the northern Alaskan coast from
