Here's how December warming could affect white Christmas chances.
The four years with the most billion-dollar disasters have all happened since 2011.
These states have suffered the most billion-dollar weather and climate disasters since 1980.
"South Florida is at risk particularly because their bedrock is porous. There are really high stakes here."
Scientists used state-of-the-art sensors to collect more data on the Southern Ocean than ever before, learning the ocean is absorbing less heat-trapping pollution than previously thought.
The global ocean conveyor belt is slowing down, impacting climate, sea levels and marine life.