Adapting to the Little Ice Age in pastoral regions: An interdisciplinary approach to climate history in north-west Europe

This paper uses interdisciplinary methods to investigate responses to the Little Ice Age in regions where livestock farming was dominant, a neglected subject due to the scarcity of detailed written records regarding pastoral land use. It argues that landscape-level histories which include pollen evidence and archaeology can address this challenge and reveal local processes of climate adaptation. Here we focus on Ireland and Scotland and a fascinating rise in small-scale cereal cultivation on upland pastures during the Little Ice Age. Bayesian modeling is used to test the chronological resolution of field evidence and compare it with climate reconstructions. We can see that the cultivation emerged in late medieval times, when cattle were facing climate-related stresses, and increased in early modern times during the Little Ice Age's main phase. We suggest that it started in an indirect adaptation to climate change, supplementing supplies of food and fodder for pastoralists, but increased as rural populations and external market demands grew. There is a need for finer temporal resolution in pollen records and archaeology, as well as greater integration with socio-economic history, if we are to be more certain about changes in the relative significance of climate in pastoral land use.