Record levels of plastic discovered in Arctic sea ice

Samples taken from five locations found concentrations of more than 12,000 microplastic particles per litre of sea ice

Scientists have found a record amount of plastic trapped in Arctic sea ice, raising concern about the impact on marine life and human health.

Up to 12,000 pieces of microplastic particles were found per litre of sea ice in core samples taken from five regions on trips to the Arctic Ocean - as many as three times higher than levels in previous studies.