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Two nurse sharks hover over a baited cage
Lesson Plan

Corrosion to Corals

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Two nurse sharks hover over a baited cage
Lesson Plan

This Old Tubeworm

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a large iceberg
Video

National Ice Center Monitors the Arctic and Antarctic

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Two nurse sharks hover over a baited cage
Lesson Plan

Off Base

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Two nurse sharks hover over a baited cage
Lesson Plan

Deep Lights

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A shell placed in seawater with increased acidity slowly dissolves over 45 days.
Overview

Ocean Acidification

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data of sea ice coverage in the Arctic
Article

Arctic Sea Ice: A New Low?

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Polar bears are threatened by a lack of sea ice.
Article

Climate Change at the Poles

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The Ross Sea is a 1.9 million square mile (3.6 million square km) stretch of ocean off the coast of Antarctica.
Slideshow

A Trip South to Antarctica’s Ross Sea

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The robotic underwater glider Scarlet Knight crossed the Atlantic over the course of several months in 2009.
Article

Underwater Robots Explore the Ocean

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A pair of sea butterflies float in the Arctic ocean.
Article

Searching for the Ocean Acidification Signal

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A team of scientists explore the Arctic ocean.
Slideshow

Under Arctic Ice

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