Fossil fuels eliminated the need for agricultural slavery, and also saved the whales. Erase history, ban fossil fuels, and slavery becomes a lot easier for the Left to implement. Remember, the Confederate States of America was created to protect slavery and it’s founders were all Democrats.

PHOTO CREDIT: Slave auction block, Green Hill Plantation, Campbell County, Virginia, Historic American Buildings Survey – By Unknown author – http://memory.loc.gov/pnp/habshaer/va/va0200/va0279/photos/160052pv.jpg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=9780140