This is an excellent article on wildfires in the Western United States. It points out the problems facing new urban forestry and the effects of climate change caused mega-wildfires.
The problem is immense. Over half the Forest Service Budget goes to fighting wildfires. As summers become longer fuels dryout sooner and uncontrollable wildfires rage. The interface between homes and forests become a disaster waiting to happen and many forest ecologist predict that over half of western forests will be converted to grassland in the next 50 years.
Thinning and fuel reduction can help reduce the danger in the urban forest interface, but this article points out the problems generated when lobbyist promote logging company interest over sound forest management.