How about this instead: if the company you are a CxO at has ever once spoken about how sustainable/green/environmental it is, you're not allowed private jets. I

How about this instead: if the company you are a CxO at has ever once spoken about how sustainable/green/environmental it is, you're not allowed private jets. In fact if the trip doesn't require you to cross an ocean, you can take a bike. Any violators will be held personally liable with a fine up to 150% of said corporation's global profits