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For the International Polar Year, we gave polar scientists cameras and blogging tools and asked them to document their field work. Follow along on their adventures and see what it's like to be a research scientist in the Arctic or Antarctica. {Read More»}
For downloadable images and videos, visit the Polar Media Collection.

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Greenhouse Gases »
Carbon dioxide is a colorless, odorless gas that makes up .04 percent of the earth’s atmosphere. It’s released by the breakdown of organic materials, by animals when they respire, and by the burning of fossil fuels. Carbon dioxide isn't toxic—after all, we exhale it with every breath and use it to make our drinks fizzy. However, as a greenhouse gas, it’s a significant contributor to global warming. {Read More»}

Wilkes Land Expedition »
By drilling into deep ocean sediments along Antarctica, scientists hope to uncover the earth’s climate history from a time when Antarctica was largely ice-free, and to investigate its transition to the glacier-covered continent we know today. Investigating this history will help lead to a better understanding of the climate changes we’re experiencing in the present day. {Read More»}

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