CHICAGO -- A unique climate change fighting machine is being used to divert thousands of pounds of food waste from landfills, as well as feed people and heat city homes in a clean and sustainable way.

At a once-vacant brownfield on the South Side of Chicago, a semitruck backed into an unassuming warehouse and unloaded a colorful batch of food scraps and spoiled products. The discards soon ended up ...

Hundreds of thousands of tons of trash moves through the Ramsey/Washington Recycling and Energy Center each year. But the goal is to keep as much of it as possible away from the landfill. "We have ...