Writing in the sky. The Dept. Of Transport is thinking of the£££.

Apparently the Department of Transport plans to allow sky writing again.
At a time when many of us are enjoying quieter skies, one of the upsides of the virus, this seems bonkers.
What are they thinking?
We are supposed to be encouraging less use of fossil fuels aren’t we?
I saw this reported yesterday and today Libby Purves has written a column in the Times.