He wants city leaders to stop plans to run coal through our state.
If approved, as much as 140 million tons of coal a year could come from Montana and Wyoming and run up and down our coastline.
Mayor McGinn is hoping to find a better, and more environmentally friendly solution to energy issues.
"Shipping coal is a 19th century proposal. This is a 21st century city. This is a city in the future, there's a way for us to grow jobs," he said.
Proponents of the idea say the coal trains will improve our economy and bring more jobs to the Puget Sound region.
Opponents say the trains will cause more traffic delays and the coal dust will hurt the environment.