Waste oil derived biofuels in China bring brightness for global GHG mitigation

► Waste oil derived biofuels bring brightness for global GHG mitigation. ► GHG mitigation potential counted 28.8% and 14.7% of Annex B countries' efforts. ► Waste oil derived biofuel was an effective way to deal with aviation carbon tax. ► Supporting measures were discussed to solve bottlenecks.