To sustain means to maintain or support something over time without causing depletion or damage.
Related terms
Sustainable development: Sustainable development refers to balancing economic growth with environmental protection and social well-being for present and future generations.
Renewable resources: Renewable resources are natural resources that can be replenished or replaced within a human lifetime.
Overexploitation: Overexploitation occurs when a resource is used excessively, depleting it beyond sustainable levels.