Secretary of Interior Sally Jewell took a trip that took her from 77 degrees north latitude to 7 degrees north latitude.  According to Jewell, "every place I've gone, the impact of climate change has been very evident."  Jewell saw Alaskan and Marshall Island runways being washed away by coastal erosion, displaced polar bears, and more.  "Climate change is everywhere," according to Jewell, and "it's big."