Burning waste to make energy is a $10 billion industry in the U.S., and the fastest growing part of the business is waste from big companies like Amazon, Subaru, Quest Diagnostics, and American Airlines.

They’re part of a growing corporate movement toward “zero landfill” as pressure mounts to reach sustainability requirements.

CNBC got an inside look at a waste-to-energy plant where trash is incinerated to power 18,000 homes in northern California.

• 00:00 – Intro
• 1:48 – The push for zero landfill
• 6:01 – How energy recovery works
• 9:04 – Emissions and toxic ash
• 12:19 – Follow the money