The fact that the Earth behaves as a single, interlinked, self-regulating system was put into dramatic focus in 1999 with the publication of the 420,000-year record from the Vostok ice core. These data, arguably among the most important produced by the scientific community in the 20th century, provide a powerful temporal context and dramatic visual evidence for an integrated planetary environmental system.
Global Change and the Earth System:
A Planet Under Pressure
Peter Tyson Pg 5
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