Is there a way that aircraft can spread anti-pollution?
Perhaps it is naive, but they consume huge amounts of air heated to very high temperatures. Could that function could be used in a device to convert CO2 into something less harmful? On the same tack, fit an ozone generator to replenish the ozone layers — sometimes odd ideas spark better ones.
David Cutter
Knaresborough
A lot of hot air
Glasgow trial explores AR cues for autonomous road safety
They've ploughed into a few vulnerable road users in the past. Making that less likely will make it spectacularly easy to stop the traffic for...