Outsourcing manufacturing to China can increase emissions; closing coal plants in the USA does not affect in or outsourcing; therefore your summary is false.
Expensive energy here vs. cheap energy in China certainly would factor into outsourcing decisions.
Energy is going to get a lot more expensive in China from here on too.
This is not true at all. Making energy more expensive to harvest, store, and consume directly impacts production costs. The higher the price the more organizations move production to areas of lower costs. When they are prevented from moving they pass those costs on to their customers.