I imagine that it would take a fair number of new workers to help burn that $4.5T. They wouldn't work for oil companies, but they might still be involved in energy production.

Besides, it's not like we have some choice here. We can either decarbonize our world economy or perish. I'm awful sick of the 'but the jobs' arguments. We don't need jobs in outdated, polluting industries. That is outright theft of healthy ecosystems from future generations for short term gain, if you can call it that.