It turns out that megaflood losses could exceed $1 trillion
It can destroy L.A. and Orange counties.
Many Californians are afraid of the "Big One"
Climate change is likely to cause devastating floods in California over the next four decades, study shows
Experts say climate change is increasing the chances of these catastrophic disasters
It will be 5 times more expensive than Hurricane Katrina
Ultimately, one of our goals is not only to understand these phenomena scientifically, but it is also to help California prepare for them," Swain said.