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Two nurse sharks hover over a baited cage
Lesson Plan

Corrosion to Corals

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UV light illuminates growth rings in a cross-section of 44-year-old Primnoa resedaformis coral found about 400 m (1,312 ft) deep off Newfoundland.
Photo

Coral Growth Rings

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

Ocean Acidification

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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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Two nurse sharks hover over a baited cage
Lesson Plan

Deep Lights

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An algal bloom, also known as a red tide, has converted the ocean's surf to a red color
Article

Scientists Work to Predict and Prevent Algae Blooms

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Two nurse sharks hover over a baited cage
Lesson Plan

Monsters of the Deep

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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

Climate Change at the Poles

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An underwater blizzard of oil, marine microbes, "sea snot", and algae.
Article

Five Questions with Uta Passow, How An Oil Spill Affects the Movement of Carbon In the Ocean

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