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Surprising pulses of ancient warming found in Antarctic ice samples – Science Magazine
Weakened Atlantic currents may have driven centurylong bursts of warming

Ice cores drilled from Antarctica chronicle centurylong pulses of carbon dioxide into the atmosphere.
Thibaut Vergoz/Institut polaire français
By Sid PerkinsAug. 20, 2020 , 2:15 PM
Earths ice ages are typically thought of as seemingly unending periods of bitter cold. But a new study suggests bursts of carbon dioxide (CO2) often entered the atmosphere during these times, providing decades or even centuries of relative warmth amid 10,000-year stretches of chill. Such pulses may have caused gla…
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