Rex Murphy: How the Liberal carbon tax is not unlike a $2,000 cat door

A couple of worthy green missionaries out in Vancouver, weary of their weight on the global ecosystem, have installed in their new, modest $3-million home “a super-insulated, radio-frequency-controlled designer cat door.”

Their cherished furball can prance from the house to the lawn and back whenever it takes it into its whiskered little head to do so, with an absolute minimum of atmospheric displacement.

The cost? A pittance, a trivial $2,000.