Japan’s largest airline has signed up for jet fuel made from renewable materials in Singapore in a small step toward more environmentally friendly travel that will add costs for an industry crushed by the coronavirus.

All Nippon Airways signed a preliminary agreement to start buying so-called sustainable aviation fuel (SAF) from a Singapore refinery run by Finland’s Neste Oyj. The deal will be expanded from 2023 when Neste will have capacity to produce 1.5 million tons of SAF a year, ANA said in a statement. The Singapore plant is being enlarged to meet increased demand for diesel and jet fuel produced from waste vegetable and animal fats and oils.

Airlines can’t ignore the inevitable shift toward biofuels triggered by campaigns to tackle the effects of aviation on the environment, Hiroaki Sugimori, who manages ANA’s sustainability department, said in an interview. The "Greta effect” — a reference to climate change campaigner Greta Thunberg — means airlines must adapt even if it involves higher fuel costs.