freakonometrics, French " Climate Crisis Is on Track to Push One-Third of Humanity Out of Its Most Livable Environment" https://www.propublica.org/article/climate-crisis-niche-migration-environment-population "As conditions that best support life shift toward the poles, more than 600 million people are already living outside of a crucial “climate niche,” facing more extreme heat, rising food scarcity and higher death rates"