When the air is warm and dry, transpiration and evaporation also suck water out of the plants and soil. That leaves dry vegetation that can provide fuel for flying embers to spread wildfires, as the Los Angeles area saw in early January.

A television news report makes clear the men in the video were helping a woman evacuate her home, not looting it.

Fox News chief correspondent Jonathan Hunt has the latest on the aftermath of the raging flames on 'Special Report.'

Despite the catastrophic damage, all-encompassing stress and unhealthy air quality, many neighbors have stepped up to assist one another.