In total, there are now 7,000 recognized languages in the world. About half of them are currently under threat of extinction. Scientists have found that without immediate intervention, 1,500 languages could be extinct by the end of this century. The authors of the work identified 51 factors or predictors that indicate whether a language will disappear. Among them were quite unexpected ones, for example, the density of roads. In addition, it turned out that the more roads connecting villages to cities, the higher the risk of languages extinction.
The researchers said there is a need to develop curricula that support bilingual education. They noted that many of the languages predicted to disappear this century are still fluently spoken.