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Join Exploratorium biologist Karen Kalumuck as she experiments with enzymes and proteins and shows at what temperatures they function best. Join Exploratorium biologist Karen Kalumuck as she investigates the characteristics of living organisms and ecosystems, and how climate change affects them. South Pole scientists Tom Crawford and Jeff McMahon take us on a virtual tour of the South Pole Station, then discuss working in the polar environment. Join Exploratorium physicists Paul Doherty and Stephanie Chasteen as they examine the past, present, and future of climate change. Watch as Paul and Stephanie demonstrate how you can look at a slice of climate from the past, what a sediment core might look like, and the secrets hidden in an ice balloon! Exploratorium physicist Paul Doherty chats with Richard Levy, a geologist, and Ross Powell, who’s the co-director of the ANDRILL project. They are drilling beneath the Antarctic seafloor, and pulling up sediment cores. By looking at the layers of the past, they hope to help us predict our future. Exploratorium biologist Charles Carlson talks about why climate change is causing a crisis with the Gulf Stream. More quick answers to the most frequently asked questions about global warming. What do the kids want to know? Join Kirk Bell's fifth grade class (from Children's Day School in San Francisco)as they chat with Holly Troy in Antarctica. Mr. Troy has spent many seasons at McMurdo station working with scientists. Join Pamela Schaller from the California Academy of Sciences as she discuss penguins and how climate change impacts them. Penguin researcher David Ainley joins us via telephone from his tent at Cape Royds, Antarctica. Dr. Ainley has been studying Adelie penguins for many seasons from his remote encampment.