![](https://upload.wikimedia.org/wikipedia/commons/7/71/Polar_bear_female_with_young_cubs_ursus_maritimus.jpg)
Ursus Maritimus: a family of polar bears. Image: wikimedia commons.
20 December 2016: Canada and the United States moved to protect designated areas of the Arctic and Atlantic Oceans, making the waters off limits to leasing and oil drilling. In 1989, the Exxon Valdez tanker ran aground in Alaska, emptying quantities of crude oil into the waters and damaging 1,300 miles of coastal land. Animals in the area are still struggling to recover. More recently, Shell’s drilling ship Kulluk ran into Arctic trouble: the accident halted any further exploration for oil. The December 20, 2016 agreement, signed cooperatively between Canada and the United States, regards the Arctic Chukchi and Beaufort Seas, and the Atlantic Ocean from Virginia to New England. Canada and the United States also cooperated in the face of danger when building the Alaska Highway. Recently, the Antarctic Marine Sanctuary in the Ross Sea created the first marine protected area in international waters, during the meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). In shared waters, cooperative agreements can place a protective freeze on melting seas.
Building the World Blog by Kathleen Lusk Brooke and Zoe G Quinn is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.