For millennia, during Finland’s blistering winters, wind drove snow into meters-high snowbanks along Lake Saimaa’s shoreline, offering prime real estate from which seals carved cave-like dens to shelter from the elements and raise newborns.
But in recent decades, these snowdrifts have failed to form in sufficient numbers, as climate change has brought warming temperatures and rain in place of snow, decimating the seal population.
For the last 11 years, humans have stepped in to construct what nature can no longer reliably provide. Human-made snowdrifts, built using handheld snowplows, now house 90% of seal pups. They are the latest in a raft of measures that have brought Saimaa’s seals back from the brink of extinction. Read the full story.
—Matthew Ponsford
Matthew’s story is from the next magazine issue of MIT Technology Review, set to go live this Wednesday April 24, on the theme of Build. If you don’t already, subscribe now to get a copy when it lands.
Politics in the AI era
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