California fires on retreat as experts warn of air hazard (AFP via Yahoo! News) Firefighters tightened their grip on California's wildfires Saturday as officials expressed concern at the health hazards posed by vast plumes of smoke shrouding the region. [News Source]

California fires on retreat as experts warn of air hazard (AFP via Yahoo! News) Firefighters tightened their grip on California's wildfires Saturday as officials expressed concern at the health hazards posed by vast plumes of smoke shrouding the region. [News Source]