Saltmarsh said that crude coal tar is no longer used. “Now you start with oil and break it down into basic components and then carry out a series of synthetic reactions. What you’re eating is ...

"Coal tar is a little more forgiving ... designed to enhance the asphalt sealer's resistance to gasoline and oil. One product is a custom-made asphalt emulsion sealer fortified with up to 10% ...

Like the kerogen in oil shale, tar sands' bitumen can be upgraded to synthetic crude oil. Because developing fossil fuels from these resources is different and more intensive than traditional energy ...

Like the kerogen in oil shale, tar sands' bitumen can be upgraded to synthetic crude oil. Because developing fossil fuels from these resources is different and more intensive than traditional energy ...

“Leave as much coal in the ground as possible. Leave as much tar sands [oil] in the ground as possible. But there will be a long transition to [lower-carbon] fuels and we will need gas at least ...