It doesn't have to. http://www.iea-coal.org.uk/site/2010/blog-section/blog-posts/can-microalgae-be-used-to-remove-co2-from-the-flue-gas-of-coal-fired-power-pla

It doesn't have to. http://www.iea-coal.org.uk/site/2010/blog-section/blog-posts/can-microalgae-be-used-to-remove-co2-from-the-flue-gas-of-coal-fired-power-plant http://www.iea-coal.org.uk/site/2010/blog-section/blog-posts...? My issue with the coal industry is they pushed back on any sort of regulation for 30yrs instead of innovating. Imagine what they could have done if they had invested in clean coal technology in the mining areas of the US. Instead, they are now complaining because they got lazy and solar and wind capitalized on their inability to get the job done.