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Geology/Earth Science Climate researcher Billy D'Andrea and
colleagues explore the remote "back lakes" of Greenland. To
understand how Earth’s climate system has changed over time,
scientists need to find, develop and use natural recorders of
temperature and precipitation. One natural thermometer comes in
the form of alkenones: trans-fats produced by certain algae.
Meet Dr. Ethan Brodsky from the U. of Wisconsin, who advised a
group of undergraduate students in the design and build of an
electric snowmobile. Video produced by Ice Stories correspondent
Zoe Courville. The Mars Phoenix Lander will have been collecting
data and sending it back to earth for a month! Exploratorium
Senior Scientist Paul Doherty will examine the data and tell us
what new information we've gained about Mars. We'll also get an
update on our old friends, the Mars rovers Spirit and
Opportunity! Alaska's coastal range is covered in literally
thousands of thaw lakes. Ken Hinkel, Yong