© Melt pond on Arctic sea ice
(c) Stefan Hendricks
© The German research icebreaker Polarstern
(c) Stefan Hendricks
© AWI employees are analysing a sea water sample for microplastic particles
(c) Tristan Vankann
© Arctic sea-ice core
(c) Tristan Vankann
© Melt pond on Arctic sea ice
(c) Mar Fernandez