Hill: Sen. Bernie Sanders (I-Vt.) on Friday night said Republican skepticism towards climate change science is a national embarrassment. One of the embarrassments that goes on in this country today is that we have a major political party called the Republican Party that is rejecting what the overwhelming majority of scientists are saying, Sanders told host Bill Maher on HBOs Real Time with Bill Maher. That is, of course, climate change is real and caused by human activity, said Sanders, a...