Hundreds of scientists, including roughly 70 from Colorado, have signed a letter to President-Elect Donald Trump asking him to "...take immediate and sustained action against human-caused climate change." We ask a CU-Boulder ecologist -- is it a quixotic move? Then sisters Jessica and Robin McIntyre are dealing with the prospect of early-onset Alzheimer's. One sister has inherited the genetic mutation, the other has not. Plus, how Colorado jump started craft brewing in Italy.
