Add Yahoo as a preferred source to see more of our stories on Google. Operators say there has been an increase in large nitrous oxide cylinders arriving at plants in recent years, despite “laughing ...

Add Yahoo as a preferred source to see more of our stories on Google. File photo of empty nitrous oxide canisters collected after a festival in England. Metro Vancouver says they are being sold at ...

A large fire has broken out at an industrial waste facility in Western Sydney with exploding gas bottles fuelling the blaze ...

A surge in discarded laughing gas canisters at waste sites has seen a rise in explosions endangering workers’ lives, authorities warn. Operators say there has been an increase in large nitrous oxide ...

The items, such as laughing gas or whippets, are ending up in the garbage and officials say they are exploding, posing ...