When will aircraft say on popular routes such as the Kangaroo route or London-New York not be allowed to take off until it's chockers? One may have to wait at the check-in counter quite some time to get on an aircraft with a paint scheme you like.
What does the Queen Mary 2 consume (coal dust?

) per passenger from Southampton to New york compared with a 747 across the Atlantic?
Soon travel may require a special licence. Reasons for travel such as warm weather won't be considered.