IF WHAT we are constantly being told is true about carbon footprints and climate change, and gas-producing 4x4s, and dairy cows, etc, the biggest threat to our planet has got to be online shopping.

Everything that is ordered online has to be delivered on four or more wheels, spewing fumes.

How does the green brigade get round that one? The mind boggles.

Ken Holmes, Cliffe Common, Selby, York.