As Los Angeles recovers from its devastating wildfires, environmental engineers, urban planners and natural disaster experts are casting forward with visions of what could come next for neighborhoods that have been reduced to ash and rubble.

For more than a century, conservation policy has focused on economic development and wisely using natural resources.

The concert, featuring Billie Eilish, Olivia Rodrigo and so many stars that it will fill two arenas, will be carried on major streaming platforms.