L.A.'s ultra-urban rivers wash tons of trash out to sea. There's a plan to change that before the Olympics

'Trash interceptors' will be installed in the L.A. and San Gabriel rivers to stop tons of plastic from reaching the ocean ...
Frontiers

Selective Biological Recovery of Critical Minerals and Materials from Waste Streams

Critical minerals and materials (CMM), such as rare earth elements (REEs), lithium, and platinum group metals (PGM), are essential for renewable energy ...