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Can the Blockchain Give This Island Nation Threatened by Climate Change a Digital Future?

As rising seawaters lap at their feet, citizens of Tuvalu are experimenting with digital tech like the blockchain and cryptocurrency to preserve their identity and independence.

Credit: : Romaine W/Shutterstock

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This story was originally published in our May/June 2022 issue as "Climate Chained." Click here to subscribe to read more stories like this one.

Talk to anyone in Tuvalu, a 420-mile-long chain of coral islands located about halfway between Australia and Hawaii, and you will soon learn that the nation is sinking beneath the waves. It’s a common topic of discussion among residents of Tuvalu, a specter constantly looming over the island nation’s 10,000-odd citizens. In a country whose total area is roughly a quarter of Disney World’s, spanning less than a third of a mile at its widest point, it is impossible to avoid the sight of the ever-encroaching ocean.

Technically, though, Tuvalu isn’t sinking. Rather, rising sea levels fueled by climate change threaten to subsume the country, whose average elevation is only 6.5 feet above sea level. In fact, Tuvalu might be at greater risk of flooding than ...

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