Frightening thought — if and only if the AGW centric prediction of future climate is either not completely correct, or out right wrong, consider extreme scenarios which would result in a drastically (and painfully) different outcome than the prophecied sea level rise / climatic tropical expansion / northerly movement of species model. (realclimate.org)
El Nino can cause warmer, drier summers, so tropical expansion might have contributed to the unusually dry conditions seen in the subtropical American Southwest and Mediterranean Europe in recent years. (livescience.com)
It's still unclear whether the jet stream migration and tropical expansion were triggered by natural climate variation or human - caused global warming, the researchers said. (livescience.com)