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Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of all marine species and provide billions of dollars in products and services to humans each year. But they are also vulnerable to...
Dr. Karen Bice studies the foraminifera in ocean sediment to better understand...
At the ends of the Earth, life thrives despite extreme conditions. In the...
How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das...

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How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das from the Woods Hole Oceanographic Institution explores this phenomenon first hand in Greenland, where she studies how the melted ice travels through...
What is blue carbon? It's a term used to describe the carbon that is...
This foraminifera was collected as it floated about 3 meters below the...

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Today, carbon dioxide (CO2) levels in our atmosphere are the highest they've been in 15 million years. It's the cumulative...
It’s confirmed: both Antarctica and Greenland are losing ice —around 350 billion tons each year—and, as a result, sea level has risen 11.1 millimeters worldwide since 1992. This photo shows a...
The nation of the Maldives is made up of 1,190 coral islands grouped into 26 atolls in the Indian Ocean. Most of their land is barely above sea level and could literally disappear if sea level rises...
CREDIT: Flickr User Fabi Fliervoet 1. Bring Your Own The trash we "throw away" doesn't disappear. Plastic bags, disposable food containers, snack wrappers, and other loose garbage can be washed into...
Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are both beautiful—the jellyfish with their pulsating bells and long, trailing...
At a recent staff meeting a Smithsonian colleague mentioned that one of his pastimes this summer has been keeping tabs on the Arctic sea ice. The question that's on many Arctic-watchers' minds is...
Dr. Karen Bice studies the foraminifera in ocean sediment to better understand climate change. More about scientists studying world climate change can be found in our Climate Change featured story .
Chapter 3: Fragile Fauna Jelly Critters Grade Level: 5-6 Focus: Life Science- Gelatinous zooplankton in the Canada Basin Description: In this activity, students will be able to compare and contrast...
Drilling near the North Pole, Dr. Jan Backman reveals a brief moment in time when the Arctic was subtropical. More about world climate change can be found in our Climate Change featured story .
The threat that climate change poses to polar bears has received a lot of attention, but they are not the only Arctic species at risk. Ice-loving seals, such as harp, hooded and ringed seals, are...
Compare the healthy coral on the left with the bleached coral on the right. Increased water temperatures caused the bleached coral to lose the microscopic algae that give the coral color and provide...
What is blue carbon? It's a term used to describe the carbon that is captured from the atmosphere by ocean ecosystems, mainly coastal mangroves, seagrasses and salt marshes. These coastal areas can...
A humboldt squid ( Dosidicus gigas )—also known as the jumbo squid—releases a cloud of ink at night in Mexico's Sea of Cortez. These large, carnivorous squids can reach more than 5 feet in length and...
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