Between 2008 and 2015, an extra 471,711 diesel cars took to the road, while the number of petrol cars decreased by 425,903. Photograph: Alan Betson

Tax on diesel fuel may have to be increased to limit a trend that has seen the number of private cars powered by it rise significantly in recent years(...)

 Higher unemployment was associated with increased mortality from all the different cancer types, especially treatable cancers, between 2008 and 2010. File photograph: Aidan Crawley

The recession of 2008 may have contributed to hundreds of thousands of cancer deaths around the world, experts claim. Unemployment and austerity were(...)