In 1989, a 185-page California climate report warned that a warming would slash the state's spring runoff by a full third. 30 years later, its warnings proved right, with mountain snow cover falling by half as droughts, floods and fires worsened

Thirty years ago, California was already being warned about what a warming climate could mean for the state. A 185-page report predicted shrinking mountain snow cover, declining spring runoff, worsening floods and greater pressure from drought and wildfire. Today, scientists say many of those changes are no longer projections. They are being observed.

In 1989, California received a warning that now reads with striking familiarity. A state report said rising heat-trapping gases could bring more droughts, floods, wildfires and heat waves. Three decades later, scientists looking back at the report say many of those projected changes have already begun showing up across California, as per Phys.Org.