California faces its most severe drought emergency in decades. How did we get into this drought?

Original air date: Thursday, August 13, 2015. California faces its most severe drought emergency in decades. How did we get into this drought? Did a much advertised El Nino give us drought relief? How does drought impact the Southern California coastal marine environment? Find out what happened to this drought and how we deal with future droughts.

Speaker:
Dr. William Patzert, Climatologist, JPL