Coastal Flooding Could Threaten Millions and Cost Trillions by 2100, New Study Finds
The study, published in Scientific Reports, found that the economic damage from those storms and from periodic flooding may cost over $14 trillion and threaten 20 percent of global gross domestic product, according to CNN.
This is on a 'business as usual' CO2 emissions scenario," said Ebru Kirezci from the University of Melbourne, who led the study. "Business as usual" assumes a rise in average global temperatures at the upper end of predictions, if global emissions are allowed to continue on their current course.
"What the data and our model is saying is that compared with now, what we see as a 1-in-100-year extreme flood event will be 10 times more frequent because of climate change," Kirezci said.If the world's nations keep emitting greenhouse gases, and sea levels rise just 1 to 2 more feet, the amount of coastal land at risk of flooding would increase by roughly one-third, the research said.
The authors also predict that the global population exposed to coastal flooding could be up to 287 million by 2100, which is 4.1 percent of the world's population, as USA TODAY reported