The farm sits on a plateau at one end of a fjord. The barns for the sheep and two small, sturdy houses for the Nielsens are built to withstand Greenland's winter cold.

Until a few years ago farming was difficult in Greenland because the temperatures simply did not remain warm long enough for crops to blossom. But now things are changing.

Hours after Denmark’s foreign minister stood alongside Californian governor Gavin Newsom — the self-anointed Democratic ...