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ICED IPY investigates the effects of the increase of CO2 on marine ecosystems

European marine scientists describe their involvement in the International Polar Year

In this series of video stories, On Thin Ice in the Bering Sea, explore the past and future of the fast-changing Bering Sea region, its culture and people, and the new polar science that is emerging from an expedition on board the Coast Guard cutter Healy. On Thin Ice in the Bering Sea is a production of Florentine Films/Hott Productions, Inc. in association with the Clark Science Center at Smith College. Produced by Lawrence R. Hott and Tom Litwin. For full credits, go to pbs.org/nova/extremeice/credits.html Copyright 2009 Florentine Films/Hott Productions, Inc. www.florentinefilms.org

In this series of video stories, On Thin Ice in the Bering Sea, explore the past and future of the fast-changing Bering Sea region, its culture and people, and the new polar science that is emerging from an expedition on board the Coast Guard cutter Healy. On Thin Ice in the Bering Sea is a production of Florentine Films/Hott Productions, Inc. in association with the Clark Science Center at Smith College. Produced by Lawrence R. Hott and Tom Litwin. For full credits, go to pbs.org/nova/extremeice/credits.html Copyright 2009 Florentine Films/Hott Productions, Inc. www.florentinefilms.org

In this series of video stories, On Thin Ice in the Bering Sea, explore the past and future of the fast-changing Bering Sea region, its culture and people, and the new polar science that is emerging from an expedition on board the Coast Guard cutter Healy. On Thin Ice in the Bering Sea is a production of Florentine Films/Hott Productions, Inc. in association with the Clark Science Center at Smith College. Produced by Lawrence R. Hott and Tom Litwin. For full credits, go to pbs.org/nova/extremeice/credits.html Copyright 2009 Florentine Films/Hott Productions, Inc. www.florentinefilms.org

In this series of video stories, On Thin Ice in the Bering Sea, explore the past and future of the fast-changing Bering Sea region, its culture and people, and the new polar science that is emerging from an expedition on board the Coast Guard cutter Healy. On Thin Ice in the Bering Sea is a production of Florentine Films/Hott Productions, Inc. in association with the Clark Science Center at Smith College. Produced by Lawrence R. Hott and Tom Litwin. For full credits, go to pbs.org/nova/extremeice/credits.html Copyright 2009 Florentine Films/Hott Productions, Inc. www.florentinefilms.org

Video of the inaugural Students on Ice University credit course Expedition to Antarctica. Follow the students and staff from Grise Fiord, Nunavut - the northernmost community in the Americas - to Ushuaia, Argentina - the southernmost city in the world! - on their journey to the frozen continent.

International Polar Year Podcast covering the summer solstice tag-up between the Phoenix Mars Mission and South Pole teams, as well as images from the Mars lander.

An upbeat invitation to "Take AIM at Climate Change" - with "AIM" standing for Adapt, Innovate, Mitigate. The lyrics are based on the latest science of Earth's changing climate, with the music a mix of rap and pop. Four verses connect changes in the Arctic and Antarctic to conditions around the planet, with choruses encouraging long-term thinking, and individual and community action. Optimistic, forward-thinking, but now's the time to act. "Yes we can!" take AIM at climate change. Download the video or audio versions at TakeAIMatClimateChange.org to iPods or iPhones, and share with friends.