Balancing Negative and Positive News Coverage

Today an encore presentation of an episode that originally aired on March 27th. Professor Katharine Hayhoe is a Canadian atmospheric scientist living in Texas who is one of North America's leading academics talking about climate change.  She's calm. reasonable but still passionate that we aren't doing enough. She's our guest today.  Plus a new answer on the old question of why do journalists only cover bad news -- you're the answer!