Little Ice Age Effects in North America

From Indigenous Continent: The Epic Contest for North America, by Pekka Hämäläinen (Liveright, 2022), Kindle pp. 21-23:

IF THE LITTLE ICE AGE posed daunting challenges to North America’s agricultural societies, it was a boon for the continent’s hunters. The cool and wet conditions favored buffalo and grama grasses, the bison’s preferred forage, and the springs were wet, supporting crucial early growth of grass after the winter’s deprivations. Now the sole surviving species of megafauna, the supremely adaptable and prolific bison faced no serious competitors, and the herds expanded their range all the way from the Rocky Mountain foothills to hundreds of miles east of the Mississippi River, and from the subarctic to the Gulf of Mexico. And where bison herds thinned out, thriving deer herds took over, their domain covering much of the eastern half of the continent.

The majority of North American Indians became generalists who farmed, hunted, and gathered to sustain themselves. Instead of striving to maximize agricultural output—an aspiration that had animated Ancestral Puebloans, Cahokians, and other early farming societies—they sought stability, security, and solidarity. Instead of priestly rulers, they preferred leaders whose principal obligation was to maintain consensus and support participatory political systems. Power flowed through the leaders, not from them. Most North Americans lived in villages rather than cities. Ancestral Pawnees, Arikaras, Mandans, and Hidatsas were typical. They settled along the upper Missouri Valley, where capillary action drew groundwater to the surface. They lived in dome-shaped earth-lodge villages that housed hundreds rather than thousands. They were horticulturists and built fortifications only rarely. This sweeping retreat from hierarchies, elite dominance, and large-scale urbanization may have turned North America—along with Australia—into the world’s most egalitarian continent at the time.

The collective mindset that prevailed, reflecting broad-based and carefully balanced economies, also distinguished North America’s Indigenous peoples. The continental grasslands—the Great Plains—were teeming with tens of millions of buffalo. Huge herds blackened the flat plains to the horizon, pulling humans in. The Shoshones moved east from the Great Basin, the Blackfoot came from the northeast, and the Crows, Omahas, Poncas, and Kansas abandoned their villages and fields along the Missouri Valley. The Kiowas migrated south from the upper Yellowstone Valley and forged an alliance with the resident Apaches. Former farmers did not give up tilling, but all of them now hunted bison, surrounding them in large communal hunts and felling them with spears and arrows, chasing them into concealed corrals in riverbeds, or driving them over cliffs to their deaths. In the Black Hills, hunters stampeded bison herds, driving the panicked animals into a corridor marked by stones that channeled the beasts toward a buffalo jump, a steep sinkhole where the high fall did the killing.