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hatrack

(59,585 posts)
Thu May 9, 2019, 07:21 AM May 2019

Canadian Arctic Ocean Acidifying Faster Than Anywhere Else In The North

Guess Secretary of State Canned Jesus Ham better hurry up to take advantage of those "bounteous fisheries".

Greenhouse gases are acidifying Canada’s Arctic waters at a faster rate than anywhere else in the North, says a report presented earlier this week at a meeting of the eight countries that ring the Arctic Circle.

The summary tabled for policy-makers at the Arctic Council meeting is based on research that predicts the Beaufort Sea off Canada’s northwest coast will be corrosive enough within a decade to make it hard for animals such as clams or crabs to create shells. That’s expected to spread east, with similar impacts in Baffin Bay, by mid-century.

While much remains unknown about how the northern ecosystem will react, scientists fear the changes are likely to make it tough for the fish that seals, beluga whales and Arctic char depend on for food. “Some of the fastest rates of ocean acidification currently observed are in the Arctic Ocean, with important physiological and geochemical thresholds already surpassed,” the report says.

Ocean acidification happens as seawater absorbs carbon from the air. Arctic seas are more vulnerable than others, because higher runoff from rivers increases carbon flows into those oceans. Declining ice cover lengthens their exposure.

EDIT

http://www.canadianinquirer.net/2019/05/09/greenhouse-gases-causing-canadian-arctic-seas-to-acidify-quicker-report/

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Canadian Arctic Ocean Acidifying Faster Than Anywhere Else In The North (Original Post) hatrack May 2019 OP
Note re. Canadian Arctic Waters: Ghost Dog May 2019 #1
 

Ghost Dog

(16,881 posts)
1. Note re. Canadian Arctic Waters:
Thu May 9, 2019, 11:00 AM
May 2019
... The five surrounding Arctic countries are limited to an exclusive economic zone (EEZ) of 200 nautical miles (370 km; 230 mi) adjacent to their coasts. The waters beyond the EEZs of the coastal states are considered the "high seas" (i.e. international waters). The sea bottom beyond the exclusive economic zones and confirmed extended continental shelf claims are considered to be the "heritage of all mankind" where exploration and exploitation of mineral resources is administered by the UN International Seabed Authority...

https://en.wikipedia.org/wiki/Territorial_claims_in_the_Arctic


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