News brief

Airlines renewed their pledge on emissions. CO2 output occurs across interlinked industries. So setting joint goals can seem overly optimistic, even suspect. At a session that ended Tuesday in New Delhi, the International Air Transport Association, representing about 350 airlines, confirmed its commitment to going net-zero by 2050. While intentions matter, especially with environmentalism under pressure, it won’t be easy. The association points to a shortage of efficient jets and a shortfall of plant-based sustainable aviation fuels – which can’t be imported over distances without negating the emissions gains. – Staff