This is one 'enviro' that is convinced here! Think about it , when you burn heating oil your adding a little less CO2 then coal, but look at what it takes to retrive, refine, and transport it. First they have to drill miles underground to find it, pump it out and transport via ship, pipeline(they have to heat the stuff in Alaska in the pipeline just to move it) etc. Just refining the stuff uses alot of energy, then get it to you!
Coal does have to be mined and broken and hauled. But most of this is mechanical, and does use some energy. But my guess is far less then producing oil.
Coal has a bad rep , mostly because of it's younger cousin, bit!
I wonder if anyone has done a true enviro impact of green house gases of the different fuels?
I'm sure that natural gas would win, but I bet anthracite coal used for home heating would beat out oil!
When I build a new home someday, it's gonna 'solar' with a coal/wood backup system!