From the “it didn’t work out with 50 million, so let’s go for 2 billion and date further our that can’t be verifed in our lifetime” department. Remember the “50 million climate refugees by 2010” scare, that worked out so badly that the U.N. had to “disappear it” from their website?
Well, like zombies that never die, it’s back, and stronger than ever. But, it’s from a sociologist, so take it with a grain of salt, and maybe the whole salt shaker.
Rising seas could result in 2 billion refugees by 2100
ITHACA, N.Y. – In the year 2100, 2 billion people – about one-fifth of the world’s population – could become climate change refugees due to rising ocean levels. Those who once lived on coastlines will face displacement and resettlement bottlenecks as they seek habitable places inland, according to Cornell University research.
“We’re going to have more people on less land and sooner that we think,” said lead author Charles Geisler, professor emeritus of development sociology at Cornell. “The future rise in global mean sea level probably won’t be gradual. Yet few policy makers are taking stock of the significant barriers to entry that coastal climate refugees, like other refugees, will encounter when they migrate to higher ground.”
Earth’s escalating population is expected to top 9 billion people by 2050 and climb to 11 billion people by 2100, according to a United Nations report. Feeding that population will require more arable land even as swelling oceans consume fertile coastal zones and river deltas, driving people to seek new places to dwell.
By 2060, about 1.4 billion people could be climate change refugees, according to the paper. Geisler extrapolated that number to 2 billion by 2100.
“The colliding forces of human fertility, submerging coastal zones, residential retreat, and impediments to inland resettlement is a huge problem. We offer preliminary estimates of the lands unlikely to support new waves of climate refugees due to the residues of war, exhausted natural resources, declining net primary productivity, desertification, urban sprawl, land concentration, ‘paving the planet’ with roads and greenhouse gas storage zones offsetting permafrost melt,” Geisler said.
The paper describes tangible solutions and proactive adaptations in places like Florida and China, which coordinate coastal and interior land