On the 24th April, the BBC reported record levels of microplastics have been found trapped inside sea ice floating in the Arctic.
Ice cores gathered across the Arctic Ocean reveal microplastics at concentrations two to three times higher than previously recorded.
As sea ice melts with climate change, the plastic will be released back into the water, with unknown effects on wildlife, say German scientists.
Traces of 17 different types of plastic were found in frozen seawater.
Main picture by ALFRED WEGENER INSTITUTE/ R.STEIN; inset picture ALFRED WEGENER INSTITUTE/ M.FERNANDEZ both taken from bbc.co.uk
Why not create your own ice core?
Fizzics Education’s Create Ice Cores shows how climatologists work in remote regions to study ice for changes in the balance atmospheric gases over thousands of years.