Why real debate needs better questions

This morning I got a call from a radio station that was doing a phone-in on low emissions zones. After London reported on the success of its Ultra-Low Emissions Zone (ULEZ), people are talking about introducing something similar across other towns in the region. Could I come on the show and talk about it?

This is a regular occurence when there’s a local environmental story. Most callers will be against, so the station lines up a couple of voices to present the other side. That means that I h...