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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

Animals of the Fire Ice

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

Ocean Acidification

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Intense volcanic CO2 vents in Ili Ili Bua Bua, Normanby Island, Papua New Guinea.
Slideshow

Will Coral Reefs Survive Acidification?

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Researchers can study ocean acidification in the lab by rearing organisms (here, Lophelia deep-sea corals) in seawater with variable pH and measuring if they grow, eat, breathe, reproduce, or develop differently.
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Studying Acidification in the Lab

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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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A graph showing rising levels of CO2 in the atmosphere over time.
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Ocean Acidification Graph

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Tiny organisms found on ARMS
Article

Traveling Around the World to Study the Future of the Ocean

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GEOMAR scientist Armin Form works at his lab during a long-term experiment on the effects of lower pH, higher temperatures and "food stress" on the cold-water coral Lophelia pertusa.
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Deep-water Corals and Acidification

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A bluefin trevally swims in Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument.
Slideshow

Two Views of Coral Reefs: Thriving and Threatened

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Where the pH is the lowest, corals can no longer grow - sand, rubble and seagrasses replace the reef.
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Lonely Seagrass in Acidic Waters

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