My trip to meet the scientists trying to refreeze the Arctic

In this week’s newsletter: The melting of the Arctic’s summer sea ice is the most visible upshot of the climate crisis. Refreezing it might be a long shot – but do drastic times call for drastic measures?• Don’t get Down to Earth delivered to your inbox? Sign up hereSpeeding across rapidly melting Arctic ice on a snowmobile gave me a vivid feel for its beauty and fragility. The brilliant white landscape gleamed ahead, while the sky blue pools of meltwater jetted up on to my boots.When I visited...