The latest on the layoffs of hundreds of scientists at the Centers for Disease Control and Prevention, including those who were mistakenly fired over the weekend.
Dr. Daniel Griffin explains the science behind the breakthroughs awarded this year's Nobel Prize for Medicine and what it might mean for treating autoimmune disease, cancer & more.
A look at Climate Week NYC and the challenge of several developing nations who are facing the challenges of a changing climate without the support of the United States.