IT company Cobweb launches green business community with PC Switch Off Evening.

In future drivers may only have to glance at the dashboard to see the pollution spewing out of their vehicle’s exhausts.

Dutch researcher Karen Scholz has taken a careful look at the properties of a new type of catalytic converter found in cars. For this so-called NOx Storage Reduction (NSR) catalytic converter the fuel is alternately combusted in the engine under oxygen-rich (lean) and fuel-rich (rich) conditions. Such diesel engines and 'lean-burn' petrol engines are more economical than conventional engines.