The price of the precious metal palladium has hit a record high of $2,500 an ounce as demand rises.

A scheme to stop cars travelling across the city has been proposed, but how would it actually work?

A British Airways insider says the industry deliberately fills planes with extra fuel to save costs.

A steel plant in Taranto moves to tackle pollution, but locals say it is too little, too late.

Drivers of older, more polluting vehicles will have to pay a fee to enter the centre of the city.

New restrictions on drivers come into force in central London today, so how do these compare with the rest of the word?

The countdown begins to the launch of one of the world's boldest attempts to tackle air pollution.

The comments come as Public Health England publishes new recommendations on improving air quality.

See an animation showing the concentration and movement of nitrogen dioxide through the atmosphere.

Nine-year-old Ella died from asthma but her family believe air pollution caused her health to fail.