According to a University of California, Los Angeles, study released Friday, climate change is projected to bring snowfall levels down as much as 40 percent in 40 years.
If significant efforts are made to reduce emissions, loss of snow will be limited to about 30 percent by the year 2100. If not, the mountains will lose two-thirds of their snowfall by the end of the century.
Researchers say the drop would be most noticeable in the San Gabriel and Tehachapi ranges.
The study is funded by the U.S. Department of Energy and the National Science Foundation. It is the second in a series that focus on the effects of climate change in the Los Angeles region.