Ice dives, walrus snaps and whale encounters: the man telling extreme stories of an Arctic at risk

Andreas Heide has been shortlisted for a Shackleton award for his work in the far north, getting up close to nature to connect people emotionally with a fragile ecosystemTo say the images of Andreas Heide during his working day are dramatic is an understatement: a freediver deep underwater in a black wetsuit, his lean silhouette enhanced by powerful bladed fins, looking up towards a group of orcas; or standing on an ice sheet next to a small sailboat in the Arctic, amid a sea full of dangerous l