As permafrost thaws, Nunavut’s capital city is racing against time to save its sinking homes

            <img src="" border="0" /><em>It&rsquo;s difficult to build new houses on thawing permafrost, and many existing houses have huge cracks in the foundations. It is also extremely expensive to ship materials in the Arctic, so the houses that are repaired and built must be planned very carefully. [...] Permafrost thaw is not a new problem; urban planners, architects, and builders have taken its volatility into account for decades in the Arctic. But climate change exacerbates existing permafrost issues&mdash;and it does so rapidly.</p></em><br /><br /><p>In this piece by Melody Schreiber, the Nunavut capital of Iqaluit isn't only dealing with scarce housing and soaring prices, many of the town's homes are sinking &mdash; or are at high risk &mdash; as the permafrost beneath them rapidly melts.
As officials turn to new solutions like thermosyphons, with climate change transforming the entire Arctic landscape, they're also planning for a future to only build on bedrock.

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