00:00The state of our planet desperately calls for all of us to be open to new ways of approaching
00:07the climate.
00:08And to do that, we have to go back 800,000 years to understand how we got to this point.
00:17A blink of an eye in geological terms, but long enough to recognize the steady pulse
00:22of a self-regulating system.
00:36Here at the U.S. National Ice Core Lab in Antarctica, scientists drill and retrieve
00:42ice cores to learn about how our climate has changed over thousands of years.
00:48It was here in Antarctica in 1988 that a joint U.S.-Russian team of scientists took
00:55ice core samples throughout the depth of the East Antarctic Ice Shelf.
01:00At a depth of over four kilometers, it's the deepest known ice pack on the planet.
01:06Each year, snowfall and dust deposits trap bubbles of air in the ice, providing an accurate
01:12record of climate conditions going back over 800,000 years.
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