Each summer, about 300 American scientists—mostly climate scientists, with a smattering of biologists and geologists —make the long trip up to Greenland to do fieldwork. These scientists are usually funded by the National Science Foundation, a federal grant-making body. And because of that, they get free transportation for the thousand-mile journey, courtesy of the only other significant group of Americans in Greenland: the U.S. military. Mia Tuccillo, a Ph.D. student and climate scientist at