Right now they’re off by more than 20 degrees latitude. Explorer Frederick Cook (above, in a studio portrait circa 1911) claimed to be first to the North Pole. The Granger Collection, NYC 5. When your ...

"What is unusual is the absence of warming in the subtropics, near 20 degrees latitude, in both hemispheres," he says. Co-authors of the paper were Lijing Cheng and Yuying Pan, of the Chinese ...