coal

Melissa Sevigny

Forests in northern Arizona have a problem: massive piles of wood chips left behind from thinning projects. They can’t stay in the forest because of the fire danger and there’s no local market for them. But they have to go somewhere. A new experiment is testing the idea of burning them along with coal to generate electricity. It’s not easy to do, but if contractors can sell wood chips to power plants, that could speed up forest restoration.

Salt River Project

Arizona’s first attempt to generate electricity with a mix of biomass and coal will take place later this year, using debris from forest thinning projects in northern Arizona.

Sam A. Minkler/The Guardian

The largest coal company in the U.S., Peabody Energy, announced Wednesday that it’s filed for bankruptcy. As Arizona Public Radio’s Ryan Heinsius reports, Peabody has operated on the Navajo Nation since the 1960s.

APS

State officials are sifting through public comments on a proposal that would stop coal from being used to run the Cholla Power Plant near Joseph City. As Arizona Public Radio’s Ryan Heinsius reports, conservation groups say the plan doesn’t go far enough to protect the environment.

NASA/JPL-Caltech/University of Michigan

A recent finding by NASA reveals that a small area in the four corners region has the highest methane gas concentration in the United States. As Arizona Public Radio’s Justin Regan reports, the study finds the main culprit is natural gas leaks from coal production.

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