Erinnert sich noch jemand an Roland Emmerichs Katastrophenporno The Day After Tomorrow? Schon vor Jahren wurde der Film als modernes Schauermärchen zerrissen. Jetzt stellt sich heraus, dass es sich bei dem ganzen Szenario tatsächlich um einen wissenschaftlichen Mythos handelt: The familiar model of Atlantic ocean currents that shows a discrete “conveyor belt” of deep, cold water flowing southward from the Labrador Sea is probably all wet. “Everybody always thought this deep flow operated like a conveyor belt, but what we are saying is that concept doesn’t hold anymore,” said Duke oceanographer Susan Lozier. “So it’s going to be more difficult to measure these climate change signals in the deep ocean.” And since cold Labrador seawater is thought to influence and perhaps moderate human-caused climate change, this finding may affect the work of global warming forecasters. “That means it is going to be more difficult to measure climate signals in the deep ocean,” Lozier said. “We thought we could just measure them in the Deep Western Boundary Current, but we really can’t.”