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Two nurse sharks hover over a baited cage
Lesson Plan

What is El Nino?

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Two nurse sharks hover over a baited cage
Lesson Plan

Caution! Do Not Bleach

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Two nurse sharks hover over a baited cage
Lesson Plan

Consequences of Arctic Climate Change

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Two nurse sharks hover over a baited cage
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Secrets of the Sediments

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Two nurse sharks hover over a baited cage
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Frozen Out

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A stormy sea lashes the village of Shismaref, Alaska, where the coastline has eroded 30–90 m (100–300 ft) in the past 30 years.
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Shismaref, Alaska

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Swimmers brave the waters in the shadow of a coal-fired power plant. Coal plants like this one emit CO2 into our atmosphere which is warming the planet and altering the chemistry of the ocean.
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Climate Change

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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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A diver cares for the reef by cleaning up discarded fishing gear and garbage.
Article

Resolve to Protect the Ocean

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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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This orange boring sponge (Cliona varians) overgrows several coral species at Panama's Smithsonian Tropical Studies Institute.
Article

Ocean Acidification Excites Boring Sponges

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An underwater photo of coral recovering from a bleaching event.
Article

A Pleasant Surprise: The Recovery of Bleached Panamanian Corals

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