Could fracking with carbon dioxide instead of water be greener?

Using CO2 to fracture rocks for oil and gas is being touted as a more environmentally friendly approach to fracking, but it may not be greener overall

Source:
https://www.newscientist.com/article/2204939-could-fracking-with-carbon-dioxide-instead-of-water-be-greener/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home