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The International Union for Conservation of nature is an international organisation working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. There has been research on polar bears and their habitats which links to the post.

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We speculate that the freelance writer likely took the information off a news report that would have repackaged the dense scientific information for a more general audience. Eg: https://geographical.co.uk/nature/polar/item/2076-polar-bear-populations-to-decrease-by-30-percent-by-2050

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The toll, as a response to melting sea ice, would result in 8,600 less individuals from an estimated population of 26,000

An extensive study by the US Fish and Wildlife Service has predicted that in the next 35 to 41 years, polar bear populations across the Arctic could reduce by almost a third.

Such a toll has a 71 per cent likelihood of occurring, the study states, a prediction determined by averaging three possible scenarios of polar bear reactions to melting sea ice. Three were needed because polar bears are divided into 19 subpopulations across the region and are not all reacting to ice melt in the same way. Some subpopulations have shown declines, some show nutritional stress while others have been observed as being either productive or simply stable.

'The data used in our study were obtained from long-term research programs on polar bears across their range,' explains Kristin Laidre, a principal scientist at the Polar Science Center, University of Washington who contributed to the report. One of the three scenarios projected a proportional decline of bears with sea ice. The other two projected losses out of already observed changes to 11 of the 19 subpopulations. 'Finally, we also used satellite data from NASA to look at the sea ice trends in each subpopulation,' she says.

Polar bears use platforms of sea ice to hunt for seals. Because they hunt little else, reductions in sea ice can seriously impact their nutrition and the survival rate of cubs. The satellite data revealed that ice cover has declined in all 19 of these subpopulation ranges over the last 35 years. 'Anthropogenic climate change is the primary threat to the species because, over the long-term, global temperatures will increase and Arctic sea ice will decrease as long as atmospheric greenhouse gas concentrations continue to rise,' the report states.

It concludes that its results are consistent with the polar bear having an IUCN listing of 'vulnerable'.

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Polar bear populations to decrease 30 per cent by 2050 - Geographical Magazine

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The toll, as a response to melting sea ice, would result in 8,600 less individuals from an estimated population of 26,000 An extensive study by the US Fish and Wildlife Service has predicted that in the next 35 to 41 years, polar bear populations across the Arctic could reduce by almost a third.

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Paul took this photo which has been used extensively across the internet (including by the bbc). Paul works for the National Geographic who may have set him the task of photographing dying wildlife at the north pole

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The freelance writer most probably collated the information which would have been obtained in articles and readings. Adding in statistics and data to highlight the issue at hand.

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Likely chose the photo and the tags and hashtags (mediates what kind of audience will be reached and the message from the photo and tags).

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This social media post was found by searching the #climatechange. Interestingly it was a post by a sustainable clothing brand. 