April 7, 2019 12:31 pm NC EXTRA: Cities and States Dealing with Climate Change USC hosts a climate change conference this past week. NBC4’s Conan Nolan talks with Los Angeles Mayor Eric Garcetti. US & World Videos 4:52 NewsConference: California to help Arizona doctors with abortions 4:58 NewsConference: LA Metro safety concerns 8:08 NewsConference: Campuses in crisis 8:43 NewsConference Extra: Kudos for House Speaker Mike Johnson 7:55 NewsConference: Is LA ready for the 2028 Olympics?