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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 whether...
What is blue carbon? It's a term used to describe the carbon that is captured...
CREDIT: Flickr User Fabi Fliervoet 1. Bring Your Own The trash we "throw away"...
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Last September, the Citizens of the Sea blog series brought you a story of doom...

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Remember playing Tetris? Originally developed in 1984, the video game in which blocks of various shapes rain down and the player needs to find a way to fit them together is now ubiquitous. This TED ED video compares Tetris blocks...
Compare the healthy coral on the left with the bleached coral on the right...
How will changes in temperature affect glaciers and ice sheets? Dr. Sarah...

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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...
Worldwide, installations of solar energy doubled from 2007 to 2008. China is leading the way in solar cell production. More about climate change can be found in our climate change featured story .
Swimmers brave the waters in the shadow of a coal-fired power plant. Coal plants like this one emit CO2 into our atmosphere which is warming the planet and altering the chemistry of the ocean. Learn...
Sponsored by the United Nations, the Global Ocean Observing System is committed to sharing observations about the ocean to all nations. Some of the data they collect comes from buoys like the one...
In December 2009, thousands of leaders and activists from across the planet converged in Copenhagen for the United Nations Climate Change Summit. Debate rages as to whether the summit achieved any...
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...
At the ends of the Earth, life thrives despite extreme conditions. In the Arctic and Southern Oceans, organisms have evolved adaptations to cope with year-round cold and six months of darkness. But...
Burning fossil fuels, such as coal, oil and natural gas, spews almost 7 billion metric tons of carbon dioxide into the atmosphere annually. Industries are looking for ways to offset their emissions...
This foraminifera was collected as it floated about 3 meters below the surface off the coast of Puerto Rico. The central dark area is the shell surrounded by spines. The tiny yellow dots are...
Newly established black mangrove ( Avicennia germinans ) in a field of salt marsh ( Spartina alterniflora and Batis maritima ) in the Guana Tolomato Matanzas National Estuarine Research Reserve in...
Many household electronics, such as video game consoles, stereos, computers, and kitchen appliances, continue drawing power after they are switched off. The U.S. Department of Energy estimates that...
Since summer 2013, starfish along both coasts of the United States have been dying in large numbers—and not gracefully. As their tissues collapse, the starfish (also called sea stars) start to look...
Earth as seen from a satellite. More about climate change can be found in our climate change featured story .
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