hair-shirt on bike

David Hockney sees red when asked about climate change:

'Oh no. Here's another hair-shirt person coming towards me and telling me to ride a bicycle. I blame computers. They can make predictive models of anything, and tell us we're all heading towards doom. But in our grandparents' day, what do you think people were worrying about? Hellfire and eternal damnation caused by our bad conduct. Global warming has just replaced God. Something to feel guilty about. The new religion.'