Sacramento Bee: A new study has found that California wildfires emit more greenhouse gases than previously believed largely through the post-fire decay of dead wood, a finding that is raising questions about how effective the state’s forests are at storing carbon and slowing global warming. The study by Thomas Bonnicksen, a retired forestry professor at Texas A&M University, found that four major wildfires – from the Fountain fire near Redding in 1992 to the Angora blaze at Lake Tahoe last year – …