Over 2,000 Indigenous languages face extinction this century, threatening the loss of crucial traditional ecological knowledge.
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Environmentalists often grapple with daunting topics such as species extinction and the decline of Earth’s ecosystems. These issues are not only distressing but also offer valuable lessons in navigating future challenges. By the century’s end, approximately a third of the world’s 7,000-plus Indigenous languages might vanish, taking with them their cultural heritage.
Despite the grim outlook, understanding the connection between language and species survival might illuminate pathways to conservation success. This relationship dates back to observations by naturalists like Alfred Russell Wallace and Charles Darwin, who noted the similar evolutionary paths of languages and species.
The Intersection of Language and Biodiversity
Explorers of the Victorian era, such as Wallace and Darwin, were intrigued by the linguistic diversity in regions like the Amazon and New Guinea. They drew parallels between the evolution of languages and species. Modern scientists, including Larry Gorenflo from Penn State University, have expanded on these ideas to reveal a significant overlap between regions rich in both biodiversity and linguistic diversity.
Research indicates that areas with a high concentration of species also host numerous Indigenous languages. Many of these are endemic, existing nowhere else. Gorenflo’s team found that nearly 70% of the world’s languages are located in high-priority conservation areas, highlighting the potential for significant conservation gains or losses in these regions.
The Dormancy of Languages
The concept of “dormant” languages arises when the last speaker of a language passes away. Unlike biological extinction, dormant languages can potentially be revived if documented. However, most Indigenous languages are oral, making revival challenging.
The Impact of Infrastructure on Languages and Ecosystems
Recent studies by Lindell Bromham and Xia Hua at the Australian National University identify roads as a key factor in language endangerment. Increased road density facilitates population movement and cultural shifts, paralleling the ecological disruptions caused by roads in natural habitats.

Roads enhance connectivity for remote communities but can disrupt local cultures and languages. This is often driven by large industries expanding into new territories, leading to the decline of Indigenous languages as they give way to more dominant languages used in governance and commerce.
Education and Language Loss
Formal education, particularly when monolingual, poses a threat to Indigenous languages. Studies in Papua New Guinea show a decline in local language skills among students, as English and Tok Pisin become more prevalent in educational and social settings. Multilingual education is a potential solution, especially when integrated with environmental education.
The Role of Indigenous Knowledge
Indigenous languages are rich in nature-related vocabulary, reflecting a deep connection with the environment. This traditional ecological knowledge is essential for sustainable living and conservation. As K. David Harrison notes, losing languages equates to losing valuable environmental insights.
Efforts to document and preserve Indigenous languages are vital for maintaining biodiversity and cultural heritage. Supporting Indigenous-led conservation initiatives and integrating multilingual education can help protect both language and nature.
This story by Karen L. Masters was originally published by The Revelator and is part of Covering Climate Now, a global journalism collaboration strengthening coverage of the climate story. WhoWhatWhy has been a partner in Covering Climate Now since its inception in 2019.

Original Story at whowhatwhy.org