Fredric Bauer writes together with co-author Tobias Nielsen in The Conversation about the recent trend of record investments in new fossil based production of plastics and other petrochemicals, a growing threat to the climate. Why? Because the raw materials behind plastics and other petrochemicals are fossil fuels. As traditional demands for oil – vehicle fuels – are declining as the transport sector is increasingly electrified, the oil industry is seeing plastics as a key output that can make up for losses in other markets. Investing in plastics has therefore become a key strategy for fossil fuel firms. These new and expanded facilities will operate for decades once they are opened, adding to the current greenhouse gas emissions of the chemical industry – which are already the third largest of all industries.