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Two nurse sharks hover over a baited cage
Lesson Plan

Secrets of the Sediments

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A decomposing sea star loses its grip on a rock.
Article

Sickly Starfish: A Q&A with Dr. Chris Mah

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Earth as seen from a satellite.
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Earth as seen from a satellite

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Two nurse sharks hover over a baited cage
Lesson Plan

Caribbean Coral Reef and Climate Case Study

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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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Which country currently emits the most greenhouse gases? Test your knowledge here.
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Global Warming Quiz

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World map during last ice age
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Ice Age Map of the World

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A map of Boston showing which streets would be flooded if sea level rose by 3 meters.
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Map of Boston with 3-meter sea level rise

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Colorful layers of a microscopic foram.
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A Colorful Foram: Globigerinoides ruber

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A newly established black mangrove sits in a field of salt marsh near the northern limit of mangroves in Florida. Mangroves have been expanding near their northern limit in Florida and the expansion is linked to a reduction in the frequency of ex
Article

Finding Mangroves In Unexpected Places

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A shell placed in seawater with increased acidity slowly dissolves over 45 days.
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Shell Dissolves in Seawater

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Scientists document a direct relationship between Arctic sea ice and polar bear survival.
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Forecast for Polar Bear Populations

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