A U.S. judge is blaming PG&E for most of Northern California’s deadly wildfires over the past two years. The federal judge said yesterday he’s tentatively concluded that the utility’s non-insulated power conductors caused the bulk of the wildfires, including the Camp Fire in Butte County. This same judge announced last week a plan to force PG&E to inspect its equipment and begin a tree-pruning program ahead of the upcoming fire season. A hearing is scheduled January 30th on the plan to force PG&E to upgrade its fire safety program.