Big Smoke turns to hydrogen - London air quality is among the worst in Europe. Can hydrogen help the capital clean up its act?

摘要

A couple of months ago the European Union issued the UK with a second and final warning for breaching EU air pollution limits. The City of London was found to be one of the most polluted places in Europe. EU regulations allow 35 'bad air' days a year. In June, Upper Thames Street provided the 36th of 2010 and triggered the EU's ire. The term 'pollution' is widely misunderstood by the media and political classes. Over the past few years, CO_2 has become the global bogeyman. It's now almost a byword for 'pollution' and low-CO_2 vehicles are dubbed 'clean'.