From what I can tell, the model is simplistic and contradicts the predictions of more complicated ones like those used by the IPCC.
There is at least one article in The Independent on this: https://www.independent.co.uk/environment/climate-change/cli...
EDIT: Looking at the citations, this was published in Scientific Reports, a journal with a 48% acceptance rate for papers and from which I have seen some questionable content, including a paper on human extinction and forest destruction written by theoretical physicists who somehow managed to shoehorn Dyson spheres into their work.