Sun rays shine on an ocean coast with a steep rocky coast.

Planet Ocean

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Hurricane Katrina

Hurricanes, Typhoons, and Cyclones Overview

Ever wonder about how hurricanes form? How about the difference between a cyclone and a typhoon? This overview dives into everything to know.

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Featured Content

On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.

Sea Level Rise

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

Ocean Acidification

a deep sea jellyfish

The Deep Sea

A real-time monitoring system helps to forecast and track tsunamis before they reach shore, giving people a chance to move to higher ground.

Tracking Tsunamis

Planet Ocean Articles

Colorful corals and brittlestars on Manning Seamount off the New England coast.

Seamounts: Underwater Oases

The currents of the North Pacific gyre collect trash—mostly bits of microscopic plastic—into what are known as "garbage patches."

Ocean Trash Plaguing Our Sea

Polar bears are threatened by a lack of sea ice.

Climate Change at the Poles

Dr. Robert Ballard with an ROV

Five Questions for Robert Ballard

The robotic underwater glider Scarlet Knight crossed the Atlantic over the course of several months in 2009.

Underwater Robots Explore the Ocean

An algal bloom, also known as a red tide, has converted the ocean's surf to a red color

Scientists Work to Predict and Prevent Algae Blooms

Two men each hold a ceramic vessel at the archaeological excavation

Archaeologists Study Early Whaling Community in Quebec, Canada

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.

The Sant Ocean Hall: Life at the Poles Exhibit

10 grains of star shaped sand collected from southern Japan

The Sant Ocean Hall: Life in the Sand Exhibit

Carrie Bow Cay field station sits in the blue and turquoise waters of Belize.

Tracking volcanic rock to the shores of Belize

A pair of sea butterflies float in the Arctic ocean.

Searching for the Ocean Acidification Signal

red worms penetrate holes in bone

Zombie Worms Crave Bone

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