From ethanol made with corn to diesel fuel made from soy beans, the agriculture industry loves biofuels.
The Environmental Protection Agency is also pushing biofuels. They're seen as cleaner burning, and burning the fuels creates less of the greenhouse gases that contribute to climate change than do fossil fuels such as oil.
All good, right?
Well, it turns out those claims might be hyped a bit.
Listen to today's Environment Report above or read an expanded version of the story below.
When you find an anaerobic digester in Michigan, they’re usually set up on large scale dairy farms.
Michigan State University has a good YouTube video showing how the process works at the digester on their campus.
Bacteria turn all that cow manure into methane, which is burned in engines to create renewable electricity. But now there’s a new kind of digester in Fremont, Michigan that’s consuming much more than cow poop.