Clean burn of coal, using carbon capture technology, could work, but it hasn't yet been made to do so commercially.

BBC: Red ink and black stuff

Once the burn has cooled, health care professionals will clean the wound and remove all nonhealthy tissue in a process called debridement, Grossman said.

CNN: Scalp burns painful, need urgent care

Indeed, Arizona Clean Fuels, an organization that bills itself as committed to building newer and better refineries that burn gasoline more cleanly, has been through the wringer for a decade as it's tried to get a refinery up in the Yuma area.

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