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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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Nancy standing by the ocean
Article

Corals to Communication: Nancy Knowlton’s Success Focusing on the Imminent

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

Reef Rescue: Protect Coral Reefs with Your Actions

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The Greenland glacier Jakobshavn Isbrae is massive, at around 40 miles long and more than a mile thick.
Article

Up Close and Personal With the Fastest Glacier in the World

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Human activity is increasing in the Arctic marine environment due to climate change. To help the most vulnerable areas, the Global Marine Program of IUCN, along with partners, is convening a series of workshops aimed at enhancing ecosystem-based management and identifying biologically or ecologically important or vulnerable habitats. Burgerbukta, a bay in Svalbard, Norway, is being managed for ecosystem protection.
Article

What is the Sea Ice Minimum? (And Why Do We Care)

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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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Earth as seen from a satellite.
Photo

Earth as seen from a satellite

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Atmospheric carbon is captured by coastal mangroves, seagrasses and salt marshes at a rate five times faster than tropical forests.
Photo

Blue Carbon

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Colorful layers of a microscopic foram.
Photo

A Colorful Foram: Globigerinoides ruber

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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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Students studying climate change create an electric car.
Photo

Aquarium of the Pacific Delegation

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