Tons of boat batteries and tires are part of the waste that the non-profit organization Rena Mälaren picked up outside Lidingö municipality's coastal strip.
Markus Olsson is a marine biologist and diver for the organization. In the video above, he explains the effects that toxic waste in the water has on the marine environment.
Rena Mälaren created a piece of scrap art from the finds in the water off Lidingö's coast.
Photo: Rena Mälaren