RE:SOMETHING TO KEEP AN EYE ONThis is an already 5 year old article - there are others and more recent articles promoting cleaner fuels, etc. The company has been progressive in addressing the issue for now quite a few years.
Private jets poluting the air are an important issue which deserves attention. However mostly media noise in my book for now.
https://businessaircraft.bombardier.com/en/experience/insight/bombardier-leads-charge-increased-adoption-sustainable-alternative-jet-fuel
GLTA