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An Ocean First: Underwater Drone Tracks CO2 in Alaska Gulf

This May 4, 2022, photo shows oceanographers Andrew McDonnell, left, and Claudine Hauri, middle, along with engineer Joran Kemme after an underwater glider was pulled aboard the University of Alaska Fairbanks research vessel Nanuq from the Gulf of Alaska. The glider was fitted with special sensors to study ocean acidification. (AP Photo/Mark Thiessen)
This May 4, 2022, photo shows oceanographers Andrew McDonnell, left, and Claudine Hauri, middle, along with engineer Joran Kemme after an underwater glider was pulled aboard the University of Alaska Fairbanks research vessel Nanuq from the Gulf of Alaska. The glider was fitted with special sensors to study ocean acidification. (AP Photo/Mark Thiessen)
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Seward, Alaska (AP) -- In the cold, choppy waters of Alaska’s Resurrection Bay, all eyes were on the gray water, looking for one thing only.

It wasn’t a spout from humpback whales that power through this scenic fjord, or a sea otter lazing on its back, munching a king crab.