Iata boss Willie Walsh blames fuel suppliers, governments and aircraft makers, saying new ‘realistic timeline’ now needed Air fare rises ‘inevitable’ as airlines face extra $100bn jet fuel bill Iata boss Willie Walsh blames fuel suppliers, governments and aircraft makers, saying new ‘realistic timeline’ now needed Air fare rises ‘inevitable’ as airlines face extra $100bn jet fuel bill The aviation industry’s landmark pledges to be net zero by 2050 will probably not now be achieved, airline