CNN CNN Newsroom With Carol Costello April 8, 2015 13:47:00
>> good morning, carol. he talked about his own experience with climate change. i started off asking him about the science relating climate change to public health. that was one of the key issues. he's sort of reframing in some ways the whole discussion around climate change and global warming as a public health one. what is the impact on public health. he was in los angeles in 197899 in college. the air quality was so bad but there were measures that improved air quality. he saw asthma rates and respiratory diseases go down. the question is if they make some of those changes more nationwide c...