Environmental News Network: A new scientific study finds that fire severity is not increasing in the forests of California's Sierra Nevada. The findings are contrary to claims by those who have tried to use recent fires in the region to justify more logging in the state's forests. The study, by Dr. Chad Hanson of the John Muir Project, and Dr. Dennis Odion of the Earth Research Institute at University of California, Santa Barbara, was published in the International Journal of Wildland Fire. It found no trend of increasing...