We also know that according  to Yale, "As Coal Use Declines in U.S., Coal Companies Focus on China".  Where did you think all those coal trains coming down the Gorge were going to?

California?

Why?  Because "China is the largest producer and consumer of coal in the world and is the largest user of coal-derived electricity, generating an estimated 90% of domestic electricity production in 2014 from coal."

"http://e360.yale.edu/features/as_coal_use_declines_in_us_coal_companies_focus_on_china

https://en.wikipedia.org/wiki/Coal_in_China