Airlines put faith in SAF as environmental pressure mounts

 https://runwaygirlnetwork.com/2021/10/13/airlines-put-faith-in-saf-as-environmental-pressure-mounts/ 

Bjorn’s Corner: The challenges of airliner development. Part 25. Safety monitoring and reporting

 https://leehamnews.com/2021/10/15/bjorns-corner-the-challenges-of-airliner-development-part-25-safety-monitoring-and-reporting/