McClatchy: Spurred by global warming concerns in the US Arctic, a federal fishery council yesterday established a moratorium on commercial seafood harvests in a vast zone off Alaska’s northern coast. In a unanimous vote in Seattle, the North Pacific Fishery Management Council approved the plan in response to the dramatic retreat of summertime ice in Arctic waters. The plan covers a nearly 200,000-square-mile area stretching from the Bering Strait waters near Russia to the US maritime …