Record flooding this week in Houston killed eight people, devastated more than a thousand homes, and caused at least $5 billion in damage. And the storms aren't over. Forecasters predict that in coming days rains along the Gulf Coast could create flooding levels that haven't been seen for 500 years. While there's no definitive link between isolated extreme storms and global climate change, scientists agree that a warming planet increases the frequency of intense weather events, as well as rising seas. Some Red State mayors of cities affected by rising seas are now breaking ranks with party leadership and calling for policies to combat global warming. But are extreme weather events enough to budge top Republican leaders from their staunch denial of climate change science?