To go green, the chemicals industry could use carbon dioxide from the air instead of fossil fuels, but this would require vast amounts of renewable energy
Source:
https://www.newscientist.com/article/2202691-greening-the-chemical-industry-requires-massive-amount-of-renewables/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home