The Thomas Fire, which devastated parts of Ventura and Santa Barbara counties in December 2017, was one of the largest fires in California history. Investigators determined the blaze was ignited by Southern California Edison’s power lines. Credit: Visions of America/Universal Images Group/Getty Images For Southern California Edison, a U.S. power company with 15 million customers, the risks of climate change are already in its backyard. Edison’s electrical wires sparked two deadly wildfires in 2017 and 2018, and the company recently set aside a $4.7 billion reserve fund for possible liabilities related to the fires. Now it has embarked on a costly program to upgrade its electrical lines and make its grid less likely to spark fires. “We are seeing the early manifestations of climate change in our state,” said Chief Executive Pedro Pizarro. “Beginning in 2017 and with the fires in northern California, those were at a scale that […]