Were the Greenland Norse victims of the Little Ice Age?

The short answer

• Cooler and drier summers cut the hay. Gifford Miller’s team dates the abrupt beginning of the Little Ice Age to about 1275–1300 and another intensification to 1430–1455. At Lake 578 in south Greenland, the clearer signal is drying rather than cooling. This mattered to farmers because cattle needed stored hay for eight months. Several bad summers could force a cull; rebuilding the herd would take years, leaving less in reserve when the next poor harvest came.
• Drift ice lengthened and endangered voyages. A voyage from Iceland or Norway became longer and more dangerous as summer drift ice spread along eastern and southern Greenland. A late-medieval sailing guide says the old route was abandoned because of ice, although that sentence may be a later addition. With fewer ships came less iron, timber and grain, less news, and fewer opportunities for people to leave or new settlers to arrive. The colony had less contact through which to address its other problems.
• The ivory economy weakened. Greenland used walrus ivory to pay for imports. The trade could still be valuable: about 520 tusks sent as church dues in 1327 were worth roughly 780 cows. But hunters later sought smaller animals farther away, and European buyers were again obtaining elephant ivory from Africa. Greenland was relying on a product that was becoming harder to secure while its market was changing.
• Plague and isolation in Norway. Norway’s own crisis weakened its connection with Greenland. The Black Death arrived in 1349 and killed perhaps half or more of the population, reducing the market and shipping. Bergen merchants turned to the profitable dried-cod trade; after the royal Greenland ship sank in 1369, it was not replaced. Thinner contact made iron and timber harder to obtain, and worn iron tools could not be replaced without trade.

What it changed

Greenland becomes Inuit land. By about 1500 Inuit communities occupied much of Greenland’s west and south coasts, including the former Norse districts. The map’s blue zones trace their movement south. Their descendants make up most of Greenland’s population today. The Norse settlements had given way to a society equipped to live in Arctic conditions.

A debate that shaped modern environmental history. Norse Greenland became a famous example in arguments about climate and collapse, especially through Jared Diamond’s 2005 book. Archaeological responses have emphasized adaptation under several converging pressures. That approach also helps frame the Mexica case later in this atlas, where a lake city faced flood, frost and drought.

Europe forgets and then searches. Norway lost contact with Greenland in the fifteenth century, and Europeans gradually forgot where the colony lay. Danish and Norwegian rulers later renewed the search, sometimes expecting to find Norse descendants. Voyages from the sixteenth to the eighteenth centuries eventually led to Danish colonization from 1721, discussed in the epilogue. The Skálholt map, drawn in Iceland around 1570, shows geography preserved through written memory.