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

Ocean Acidification

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Two nurse sharks hover over a baited cage
Lesson Plan

Deep Lights

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In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal faced an uncertain future. See more Nature's Best Photos.
Article

Ice-Loving Seals and the Loss of Sea Ice

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Two nurse sharks hover over a baited cage
Lesson Plan

Monsters of the Deep

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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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Male Climate Scientist
Video

2019: Second Warmest on Record

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the oil on the surface
Video

The Gulf Oil Spill: Effects on Marine Life

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Two nurse sharks hover over a baited cage
Lesson Plan

Off Base

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a large iceberg
Video

National Ice Center Monitors the Arctic and Antarctic

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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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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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A screenshot from video of a lobster.
Video

A Rainbow of Colorful Lobsters

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