A better title could be, amount of sand needed to maintain beaches will rise 2x by 2050. This is the only claim the study makes - it’s literally about the cost

A better title could be, amount of sand needed to maintain beaches will rise 2x by 2050. This is the only claim the study makes - it’s literally about the cost of buying sand to replenish the eroding coastline. And the 5x number? They assumed 3% inflation and calculated the cost increase based on that. I don’t even know where to begin with that one…