Doomsday clock moves

The iconic Doomsday Clock, considered a metaphor for the dangers faced by the world, was pushed ahead by two minutes over concerns about worsening climate change and the world's failure to reduce nuclear weapons, a trans-Atlantic group of prominent scientists announced.

Climate change? The time scales are a little different.

Russian nuclear ICBMs can destroy American cities in only about 30 minutes. The widely-accepted IPCC estimates on sea level rise are only 7 to 23 inches this century. Miami Florida is considered the most vulnerable city in the world, and could eventually lose some tourist hotels.