A giant dam could stop the Arctic from melting
Geography
Engineers have proposed a massive 100-kilometer barrier across the Bering Strait to block warm Pacific waters and shield the Arctic's remaining ice from the inside out.
The most ambitious climate fix ever imagined involves building a wall across the 85-kilometer gap between Alaska and Russia. This proposed Bering Strait dam would act as a literal gatekeeper, blocking 2.4 million cubic meters of warm Pacific water from entering the Arctic every second. By cutting off this thermal inflow, models suggest we could cool the northern waters by 1.5 degrees Celsius, potentially reversing the rapid melting seen since the 1980s.