https://www.nytimes.com/2018/09/04/climate/outsourcing-carbon-emissions.html

https://www.vox.com/energy-and-environment/2017/4/18/15331040/emissions-outsourcing-carbon-leakage

https://www.silicon.co.uk/workspace/carbon-taxes-will-drive-outsourcing-19851?inf_by=5bd75be9671db8d5168b511b