STANFORD, Calif., March 2 (UPI) -- According to a new study, California's historic drought was caused primarily by climate change.
Researchers at Stanford looked at temperature, precipitation and drought data for California dating as far back as 1895. They found droughts are more common in warm and dry years, and those kinds of years have been more common the past few decades. They looked at the effect of greenhouse gases on weather patterns and found it was indeed increasing the likelihood of droughts occurring.