Walrus herds gather on Alaska's northwest shore

(AP) -- Large herds of Pacific walrus have begun gathering on the northwest coast of Alaska, again forsaking sea ice for sand in what has become a symbol of climate warming in the region.

Shell files new plan to drill in Arctic

Royal Dutch Shell has submitted a new plan for drilling in the Arctic offshore Alaska, more than one year after halting its program following several embarrassing mishaps.

Obama approves oil drilling in Arctic

US President Barack Obama's administration on Monday approved petroleum giant Shell's request to drill for oil and gas in the Arctic under certain conditions, despite opposition from environmental groups.

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