That’s an unusually rapid shift, said Shaun Marcott, an Earth scientist at the University of Wisconsin–Madison who was not involved in the research. “They’re fast enough to make us puzzle about what’s going on.”
That’s an unusually rapid shift, said Shaun Marcott, an Earth scientist at the University of Wisconsin–Madison who was not involved in the research. “They’re fast enough to make us puzzle about what’s going on.”