Voices on the Edge: Why Endangered Languages Matter

Somewhere in the world right now, there is a person who is the last fluent speaker of their language. When that person dies, their language — and everything uniquely expressed in it — disappears forever. Linguists estimate that roughly 7,000 languages are spoken on Earth today. Of those, more than 3,000 are considered endangered. According to UNESCO, on average one language vanishes every two weeks. That means by the time you finish secondary school, dozens of languages that exist today will be gone.

A language becomes endangered when children stop learning it as their first language at home. If no new speakers are born into a language, the community of speakers shrinks generation by generation until the language reaches extinction — the point at which no fluent speakers remain. Linguists use a scale to measure endangerment. A language is 'vulnerable' if most children still speak it but only in some situations. It is 'severely endangered' if only grandparents speak it daily and parents understand it but do not pass it on. It is 'critically endangered' if only a handful of elderly people still use it. Finally, a language is 'extinct' when the last speaker has died. Causes of language endangerment fall into several overlapping categories: 1. Dominant-language pressure. When a powerful national or global language — such as English, Mandarin, or Spanish — offers better economic opportunities, families often choose to raise children in that language instead of their heritage tongue. This is not a free choice in a vacuum; it reflects real-world inequality. 2. Historical colonisation. Colonial powers frequently banned or punished the use of indigenous languages in schools and public life. This severed transmission across generations. Many languages of the Americas, Australia, and Africa were severely damaged during colonial periods. 3. Urbanisation and migration. When speakers move to cities to find work, they scatter into communities where their heritage language has no daily use. Children grow up surrounded by the dominant city language. 4. Small population and geographic isolation. A language spoken by only a few hundred people in one village is extremely vulnerable to natural disaster, disease, or forced displacement. Why does it matter? Each language encodes a unique way of understanding the world. Some languages have grammatical structures that allow speakers to express concepts — relationships between people and land, types of snow, emotional states — that have no direct equivalent elsewhere. When biologists study plants or ecosystems, they sometimes find that indigenous communities have precise vocabulary for species and ecological relationships that Western science only later confirmed. Languages also carry oral literature, history, and cultural identity. The loss of a language is therefore not just a communication loss — it is a loss of human knowledge and diversity.