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00:03:16
Dr. John Barnes, Station Manager of NOAA's Mauna Loa Observatory, shares the history of Charles Keeling's pioneering carbon dioxide measurements, which have been taken continually at Mauna Loa since 1958.

00:17:15
Join exhibit developer Charles Sowers as he demonstrates Watch Water Freeze, an exhibit designed to encourage noticing. Patience with this piece is rewarded with breathtaking patterns of ice crystals. Viewed through a polarizing filter, the beautiful colors and crystalline structures of Watch Water Freeze have inspired countless museum visitors to reach for their cameras.

00:48:31
Join the ECHO Climate Change Symposium and sit in on a keynote address from Charles Wohlforth, author of the 'The Whale and the Supercomputer'.