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A Counterintuitive Effect of Global Warming
This is an edition of Time-Travel Thursdays, a journey through The Atlantic’s archives to contextualize the present and surface delightful treasures. Sign up here.
Updated at 12:05 p.m. ET on January 26, 2024.
In a 1998 Atlantic cover story, William H. Calvin offered perhaps the best oceanography lesson to appear in a major national magazine. It was also a call for concern: He drew on the research of the legendary Columbia University climate scientist Wallace Broecker to explain the relationship between ocean currents and the climate, and warn about a rather counterintuitive tipping point that our age of global warming could cause. By warming the planet, humanity might kick off a disastrous oceanographic flip-flop.
A part of the great underwater conveyor belt
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