Highland Scots faced many push factors that led to large-scale emigration in the 1800s-1900s. There was not enough land for subsistence farming, soils were poor, and the Potato Famine devastated the population. Later, jobs were lost in kelp harvesting and fishing as foreign competition and changed tastes impacted demand. Mechanization also reduced the need for farm labor. Further, isolation made accessing services difficult while land clearances forcibly evicted tenants so estates could be used for more profitable sheep farming. Combined, these social, economic, and political pressures left many Highlanders with no choice but to emigrate to places like Canada.