1、Waypoint 20501CONTENTSForeword:asking the right question2What will enable net zero aviation by 2050?3Executive summary5Note on short-term challenges11Progress on climate commitments15Net zero carbon scenarios21Input:traffic forecasts28Measure 1:technology30Measure 2:operations and infrastructure39Me

2、asure 3:sustainable aviation fuels45Measure 4:market-based measures58Consideration:the cost of transition65References69Acknowledgements73Waypoint 20502We have always said that reaching aviations climate goals would be incredibly challenging(indeed,achieving needed climate goals across the entire eco

3、nomy is enough of a challenge).It becomes even harder every year that substantial efforts are delayed.But that shouldnt hold us back from celebrating the progress we have achieved,and from recognising the importance of ambition in setting a destination.Each year,before the COP climate talks,the Unit

4、ed Nations Environment Programme publishes its Emissions Gap Report which assesses how the policies put in place by governments around the world are progressing towards the Paris Agreement aims:a temperature increase well below 2C above pre-industrial levels and pursuing a limit of 1.5C warming by t

5、he end of the century.At the time of the Paris Agreement,the stated policies had the world on a likely temperature increase of 3.6C by 2100.A decade later,that number falls to 2.6C if all nationally-determined contributions are implemented.It is still far short of what is needed.But it shows that pr

6、ogress can be made,despite all the odds.Our collective goal is to continue shrinking that temperature rise.Although aviation is just part of that equation,all sectors need to do their bit.So the question should not be“is net zero for aviation possible?”,but rather“how do we best enable net zero carb