Writer and explorer Gretel Ehrlich is author of 13 books, including "The Solace of Open Spaces." She has written for National Geographic, The Atlantic, Orion, and other publications. Her recent writing has covered everything from her experience being struck by lightning, to essays about how climate change has been affecting the Arctic communities in Greenland that she has been visiting for the last 16 years. Writing in Harper's Magazine she notes that "the ways in which these Greenlanders get their food are not much different than they were a thousand years ago, but in recent years Arctic scientists have labeled Greenland's seasonal sea ice 'a rotten ice regime.' Instead of nine months of good ice, there are only two or three. Where the ice in spring was once routinely six to ten feet thick, in 2004 the thickness was only seven inches even when the temperature was -30 degrees Fahrenheit. 'It is breaking up from beneath,' one hunter explained, 'because of the wind and stormy waters. We never had that before.