Widespread Human Influence: Numerous scientific and UN reports indicate that humans have significantly altered or disturbed a vast majority of the Earth's ice-free land surface. Recent estimates from the United Nations Convention to Combat Desertification (UNCCD) state that humanity has already altered 70% of the land from its natural state.

Disturbance vs. Degradation: While "degradation" (the loss of biological or economic productivity) is specifically estimated at up to 40% of the Earth's land, the broader category of "disturbance" or "modification" covers a larger area, typically cited in the 60-70% range in educational and scientific contexts.

Primary Drivers: The main causes for this widespread disturbance include agricultural expansion, deforestation, urbanization, and infrastructure development