Overshoot occurs when ecological footprint exceeds which measure?

• A. Biocapacity
• B. Annual rainfall
• C. Carbon storage
• D. Soil fertility

Answer: (A)

Understanding this concept starts with the balance between what humans take from the planet and what the planet can renew. The ecological footprint measures how much demand we place on Earth's resources in a year, while biocapacity represents the planet’s ability to generate those resources and absorb the waste. Overshoot happens when the ecological footprint exceeds biocapacity, meaning we’re using resources faster than Earth can renew them and the excess waste accumulates. The other options aren’t the overall annual budget that constrains this balance: rainfall is a climate input, carbon storage relates to how much carbon ecosystems can hold but isn’t the budget for renewables and waste, and soil fertility affects productivity but not the global renewal/waste-absorption capacity.