‘Renewable resources on earth are those that continue to replenish themselves on a time scale relative to the human lifespan’.
Renewable resources are those that can be replenished in a relatively short time period, such as a few years or decades. Renewable resources are important to our planet's sustainability because they can be harvested without depleting the natural environment. Examples of renewable resources include water, sunlight, wind, and geothermal energy. As humanity continues to grow, there is an increased need for renewable resources to meet our growing energy and resource needs. Renewable resources are also important because they can help to reduce greenhouse gas emissions and other pollutants that contribute to climate change.
A resource replenishing within the time period of a human generation would be a reasonable gauge of renewability. That is an average of 26.9 years according to
https://pubmed.ncbi.nlm.nih.gov/36608127/
Wang RJ, Al-Saffar SI, Rogers J, Hahn MW. Human generation times across the past 250,000 years. Sci Adv. 2023 Jan 6;9(1):eabm7047. doi: 10.1126/sciadv.abm7047. Epub 2023 Jan 6. PMID: 36608127.
For proposing a regulatory definition, I would round this to a simple 25 years.
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