To keep Arctic sea ice from disappearing, make it thicker

Researchers working in Canada have trialed technology to thicken Arctic sea ice. They pump seawater out from under the ice, then let that water freeze into a layer up top. That extra thickness slows down the melting process in the summer. As part of our Big Fix series, The World's Host Carolyn Beeler speaks with Andrea Ceccolini, CEO of Real Ice, about whether his company's climate solution is effective and scalable.