According to [1], in a given year, 5000 tons (I'll assume metric ton which is more generous) of helium is produced by alpha decay of radioactive ores in the Ear

According to [1], in a given year, 5000 tons (I'll assume metric ton which is more generous) of helium is produced by alpha decay of radioactive ores in the Earth's crust. At 0.1785 kg/m³ for Helium, this is 0.89 million m³ of helium produced by natural alpha decay each year. According to [2], in a given year, 160 million m³ of helium is extracted across the planet. This rate of extraction is 180x the replenishment rate. According to [2], there are at least 12061 million m³ of helium reserves known to exist and have been measured/estimated. The timeframes for depleting this precious resource are incredibly short. The known 12061 million m³ of helium reserves, making the very generous assumption it can all be economically extracted, will be depleted by 2096. [1] https://link.springer.com/article/10.1007/s41247-020-00072-5 https://link.springer.com/article/10.1007/s41247-020-00072-5 [2] https://pubs.usgs.gov/periodicals/mcs2023/mcs2023-helium.pdf https://pubs.usgs.gov/periodicals/mcs2023/mcs2023-helium.pdf