With passenger numbers growing and time to slash emissions dwindling fast, the industry must tackle urgent stumbling blocks on fuel, frequent flyers and moreAviation tanked in 2020. The number of people taking flights fell by three quarters compared with 2019 levels and as a result there was a significant drop in greenhouse gas emissions from aviation. But as countries open up and people begin to fly again, aviation is expected to see a slow climb back to previous levels. The industry anticipates a return to 2019 passenger numbers globally by 2023 and to be back on track with previous growth… Source – Full Article https://www.theguardian.com/environment/2021/sep/05/the-six-problems-aviation-must-fix-to-hit-net-zero