Scientists seeking to avoid catastrophic sea-level rises from the melting West Antarctic ice sheet have come up with a “terrible” solution: use snow cannons to pump trillions of tonnes of ice back on top. The gargantuan ice sheet contains enough…

Scientists seeking to avoid catastrophic sea-level rises from the melting West Antarctic ice sheet have come up with a “terrible” solution: use snow cannons to pump trillions of tonnes of ice back on top. The gargantuan ice sheet contains enough…