Around six trillion cigarettes were manufactured across the world in 2014. Of this, it is estimated that more than 60% of the cigarette butts were disposed of in the environment. 

Up to two thirds of every cigarette smoked is discarded onto the ground, translating to be...

Dr Sarah Mitchell, Martin Clift and Professor Shareen Doak from Swansea University look at the evidence around e-cigarettes.

The number of adults currently using e-cigarettes in the UK is close to 2.9m, many of whom will have turned to the devices to quit smoking....

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