Figure shows the shares of GHG emissions across the lifecycle stages in 2050 (feedstock extraction, production, use and end-of-life) for the four main chemical groups (olefins, aromatics, ammonia, and methanol) and seven featured pathways, compared with 2020. The lifecycle emissions profiles vary significantly across the chemical groups: for example, the usephase emissions from fertilizer use dominate for ammonia (>90% across all emission reduction pathways), while for olefins, feedstock and end-of-life emissions are most important.