Endangered languages — Endangered languages: why they matter

"Optimistic estimates suggest that at least 50 percent of today’s spoken languages will be extinct or seriously endangered by 2100. More pessimistic, but also realistic estimates claim that 90-95 percent will become extinct or seriously endangered by the end of this century. Most of these languages are indigenous languages. Humanity may well have only 300-600 oral languages left that are unthreatened by the end of this century". -- United Nations Department of Economic and Social Affairs Indigenous Peoples :International Decade of Indigenous Languages 2022 – 2032

For more information  source: https://www.un.org/development/desa/indigenouspeoples/indigenous-languages.html