Browsing 200 - 210 results of 490 webcasts
Join Senior Scientist Paul Doherty as he explains the difference between floating ice and land ice, and why they effect sea levels differently. Join Senior Scientist Paul Doherty as he measures the power used by two lightbulbs--one incandescent and one fluorescent--that make the same amount of light. Join Senior Scientist Paul Doherty as shows how to melt ice unbelievably fast! Join Exploratorium staff as they give the quick answers to the most frequently asked questions about global warming: What is a "tipping point"? What are carbon credits? What is carbon neutral? What can I do? What can my kid do? Join us as we talk to scientists from the ANDRILL (ANtarctica DRILLing) project, who are currently on a geological drilling expedition in Antarctica. Join us as we talk with Robert Henson, author of The Rough Guide to Climate Change. Join us as we chat with Chris Mooney, Washington correspondent for Seed Magazine and author of Storm World: Hurricanes, Politics, and the Battle Over Global Warming and The Republican War on Science. His blog can be found at http://scienceblogs.com/intersection. Tom Crawford and Jeff McMahon show us a day in the life of a South Pole scientist, then talk about what the telescope will be searching for: dark matter, galaxy clusters, and evidence of the universe expanding. Join Exploratorium physicists Paul Doherty and Stephanie Chasteen as they examine the past, present, and future of climate change. In this show, Paul and Stephanie discuss the future of our climate. Learn more about the oceans, global warming, feedback effects, glacial ice and sea ice, and some things you can to do help. Exploratorium biologist Karen Kalumuck will examine how increasing temperatures affect specific organisms at the poles—from phytoplankton to polar bears!