San Francisco Chronicle: A warming climate will fuel larger, more frequent wildfires in the Sierra Nevada and other parts of the West, and the fires will contribute to climate change, according to a new study. More than 20 international scientists, in the report published Friday in the journal Science, said fire is not only a consequence of climate change but an important cause. “Fire also influences the climate system. This is what we call a feedback,” Jennifer Balch, a fire expert at the University …