Global bottled water giants are ramping up trials of easily recyclable aluminium cans to replace plastic that pollutes the world's seas. Sound like a slam-dunk for the environment? Not entirely.
Aluminium cans might indeed mean less ocean waste, but they come with their own eco-price: the production of each can pumps about twice as much carbon into the atmosphere as each plastic bottle.
French group Danone has become the latest company to make a move, telling Reuters it had started to replace some plastic bottles with aluminium cans for local water brands in Britain, Poland and Denmark.
