As damaging as it was for more than 32 trillion gallons of rain and snow to fall on California since Christmas, a worst-case global warming scenario could juice up similar future downpours by one-third by the middle of this century, a new study says.
The strongest of California’s storms from atmospheric rivers, long and wide plumes of moisture that form over an ocean and flow through the sky over land, would probably get an overall 34% increase in total precipitation, or another 11 trillion gallons more than just fell. That’s because the rain and snow is likely to be 22% more concentrated at its peak in places that get really doused, and to fall over a considerably larger area if fossil fuel emissions grow uncontrolled, according to a new study in Thursday’s journal Nature Climate Change.
