Except only in a virtual model – they did much of their model wrong, and have fundamental logic errors – read the full thread:
The creative writers at The Guardian promote the original paper, without skeptical inquiry: Climate crisis: average world incomes to diminish by nearly a fifth by 2050 | Climate crisis | The Guardian. Most of the media ran with that thesis.
The Guardian author has a BA in English Lit, and an MA in Japan Area Studies. He is now the environmental reporter for The Guardian. He has traveled throughout the world and now lives in Brazil. He has no formal training in environment, science, statistics or economics. He paid attention to the text of the published paper – not the equations.
Reading equations is different than reading text. You need to stop and slow way down – and understand the details of the equation and variables and what is being calculated. When I see equations, I start with pencil and paper to see what the equation is doing and why. Equations are not, typically, something you blow through and jump to the paper’s conclusion. Nor can you rely on the press release that accompanied the publication of the paper. You need to do the hard work of going into the details and skeptically evaluate what is actually occurring in the paper.
