Next, they looked for correlations between language loss and factors such as a country's gross domestic product and levels of globalization as calculated by an internationally recognized index. (sciencemag.org)
In addition, they examined environmental factors such as altitude, which might contribute to language loss by affecting how easily communities can communicate and travel. (sciencemag.org)
Two types of language loss hotspots emerged from the study, published online today in the Proceedings of the Royal Society B. (sciencemag.org)