How to tackle global warming - and how not to

ast week, a study in the prestigious journal Nature revealed just how much CO₂ increases have greened the Earth over the past three decades. Because CO₂ acts as a fertilizer, as much as half of all vegetated land is persistently greener today. This ought to be a cause for great joy.

Instead, the BBC focused on warning that the paper shouldn’t make us stop worrying about global warming, with threats like melting glaciers and more severe tropical storms. Many other major news outlets did not even report on the study.

Improving energy efficiency is a fashionable policy that governments worldwide promote. On paper, it seems a no-brainer: improving energy efficiency is sold as cost-reducing, job-creating, and planet-saving. Win, win, win – and the media often help close the deal, focusing entirely on all the supposed upsides. But there is another side – a downside – to the story.

MILKEN Institute Global Conference, Los Angeles