What You Can Do

If By Clean You Mean Filthy: On clean coal
Dear Umbra, I noticed that several of the presidential primary debates were sponsored by clean coal. This was announced during breaks and several commercials aired. I have since seen several more commercials and online advertisements. Is clean coal an oxymoron? Is this a PR stunt or are there any real environmental benefits to clean coal that rival solar and wind? See www.americaspower.org. Andrew S., Brookline, Mass.