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?
Source: [Guardian International](https://www.theguardian.com/environment/2026/jun/19/scientists-refreeze-arctic-melting-sea-ice)