Trump versus California on emissions standards, upcoming climate strike

We talk about a couple of environmental issues in the news. President Trump announced that he will roll back a waiver that lets California set higher emissions standards for cars than the federal government does. Also, we talk about the student climate strike that will take place Friday, as students protest to have more done about climate change. We hear more from Sandy Bahr, chapter director for the Grand Canyon Chapter of the Sierra Club, and Claire Nelson of Arizona Youth Climate Strike.