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Discovering ancient climates in oceans and ice

666,064 views | Rob Dunbar • Mission Blue Voyage

Rob Dunbar hunts for data on our climate from 12,000 years ago, finding clues inside ancient seabeds and corals and inside ice sheets. His work is vital in setting baselines for fixing our current climate -- and in tracking the rise of deadly ocean acidification.

Rob Dunbar hunts for data on our climate from 12,000 years ago, finding clues inside ancient seabeds and corals and inside ice sheets. His work is vital in setting baselines for fixing our current climate -- and in tracking the rise of deadly ocean acidification.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

About the speaker

Oceanographer, biogeochemist

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Rob Dunbar looks deeply at ancient corals and sediments to study how the climate and the oceans have shifted over the past 50 to 12,000 years -- and how the Antarctic ecosystem is changing right now.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.