Question: Which of the following is a line of evidence that supports the assertion of global warming, especially over the past 30 years? Need Assignment Help? Question Select one: a. The spatial area of permafrost regions in low latitudes has substantially increased. b. Large ice shelves, such as the Larsen B in Antarctica, are breaking up. c. Sea ice has increased substantially, at a rate of about 3% per decade. d. The rate of ice loss on the Greenland ice sheet has decreased.