Containment measures the percentage of a fire's perimeter that firefighters have under control. Parts of the fire's interior may still be burning.

Those looking to assist residents affected by the Los Angeles County firestorm have a number of options to donate money, materials or their time.

Firefighters in Southern California are once again battling a wildfire, this time in Castaic in Los Angeles County, north of Los Angeles itself. Evacuation orders have been issued for the surrounding areas.

Thousands of firefighters have been battling wildfires across 45 square miles of densely populated Los Angeles County. The two largest fires, the Palisades Fire in Pacific Palisades and the Eaton Fire near Pasadena, remain active. One of the latest, the Hughes Fire in the Castaic area, has prompted evacuation orders for tens of thousands of people.

These are some of the bold ideas academics have for Los Angeles as it recovers from the Eaton and Palisades fires, which killed 28 people and damaged or destroyed nearly 16,000 structures. Together, the blazes charred 59 sq miles (152 sq km) - an area larger than Paris.