npr.org Jan 25 2017
UC Davis researcher Hyunok Lee, whose study was published in the journal California Agriculture, found that winter temperatures are increasing more than at any other time of year. Her model looks at the year 2050 in Yolo County.
“Our agriculture will continue,” Lee says. “But if you look at . . . 20 years or 30 years, the pattern may change a little bit, crops may move a little bit north.”
She says tree crops like walnuts would be harmed the most, but annual crops like tomatoes could benefit from rising temperatures. For growers with huge investments in trees that have life cycles of 25 years or more, this is a big deal.