Should Delhi ban diesels? The health evidence on diesels justifies actions that extend restrictions on diesels until they are cleaner. The court should consider a new tax scheme on diesels to pay for their health damages or implement a restriction similar to German law, which permits only BS VI engines.
Defeat device testing in the EU: So far, not so good The post-VW vehicle testing by Germany, the UK, and France suggest that defeat devices are being employed in Europe that have yet to be detected. But further testing is needed if the goal is to independently determine the actual cause of the high emissions.