Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Britain's Royal Commission on Environmental Pollution has joined the lobby against the motor-car without paying enough attention to the political obstacles to the pursuit of draconian policies.
