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Traditional knowledge about snow and ice conditions on and in the ground is essential in the life of the Yamal Nenets. This holistic knowledge helps the Nenets to travel in the tundra, find good pastures for their domesticated reindeer herds, select proper places for making their camps, find firewood, and locate clean snow or ice for drinking water. It is particularly important for reindeer herders, because looking at different characteristics of snow (layers, hardness, and granularity) enables them to find good pastures for their animals. If there are dangers posed by a crust of ice on the snow, herders have to move their herds to other pastures. Moreover, even reindeer know which kind of snow is easier for them to break with their hooves and where good forage is found. Significantly, the Nenets language has developed a sophisticated terminology describing different types of snow and ice, and similarly permafrost has a special name. Like many other Indigenous peoples of Siberia, the Nenets have noticed that climate change in the Arctic is dramatically affecting their life: it is changing the tundra landscape, the seasons, and the conditions under which they live and herd reindeer. In consequence, the reindeer-herding culture itself helps the people to preserve this knowledge of how to live in the tundra, but to remain relevant, the Nenets’ knowledge of tundra ecology and their words for snow, ice, and permafrost must continuously adapt to new realities of the tundra. However, if that culture disappears in the Yamal, this resource will also be difficult to save.

This report describes the adoption and integration of Western medicine in Cherán K’eri after the social changes in the 1940s which led to the transition from healer to pharmacist. There are various health models that rely heavily on community pharmacies. The place used as the basis for this report was a clinic managed by a Purépecha-speaking physician and pharmacist that served primarily monolingual indigenous Purépecha patients, whose population was around 9550 according to the 2010 census. Twelve major differences were observed between community pharmacies in the United States and the community pharmacies of Cherán. It was also observed that the modern approach to the health of the indigenous population used a combination of Western medicine together with traditional methods and only resorted to short-term therapies with Western medicines lasting five days or less. A formulary from the clinic’s community pharmacy compiled in 2022 listed the 38 most common medications. Medications used included anti-infectives (n = 3), central nervous system (n = 2), endocrine/hormonal (n = 3), gastrointestinal (n = 3), musculoskeletal (n = 17), respiratory or allergy (n = 6), and genitourinary (n = 2).

The Sahel region is characterised by forestry resources exploitation for making tools, household utensils, chattels and others admittedly usefulness products. The aim of this study conducted by surveying in sahelian villages and by farm observations is to characterise the traditional knowledge of forestry resources used by different ethnic groups and their impact on resources evolution. Moreover, an economic attempt to escape this kind of forestry resources exploitation is done. Many cultivation and keeper tools, chattels, household utensils are made with forestry resources. The plants used for every forestry produce is variable with the existence or abundance of the species and the sociologic and cultural consideration peculiar to each ethnic group like choice of fuel wood. The different exploitation forms more or less severe had been contributed to amplify the climatic dryness effects on forestry resources degradation. Fortunately, an evolution with manufactured products enable to adapt environment changes. There is an imperious necessity to document, consider and to improve indigenous knowledge of natural resources for sustainable development

This letter addresses the indigenous discourse on a set of plant species used by the Witoto Indians of Northwest Amazonia to extract ash or vegetable salt, obtained from the combustion of the tissues of vegetable species, filtering of the ashes, and desiccation of the resulting brine. It aims to demonstrate how the study of the human condition is carried out through a reading of natural entities. The method employed is the indexical analysis of a discourse uttered by the elder Enokakuiodo in the Witoto language from 1995 to 1998, in a verbal genre called rafue , one of several genres of the ‘language of the yard of coca’. The species used to extract ash salt are conceived of as coming from the body of the Creator and as an image of the human body. The rafue of salt performs, in words and gestures, a narrative of human affects and capacities by reading ecological, biological, cultural and linguistic indices from a set of plant species. This discourse on plant species is a discourse on the control and management of bodily affects and capacities, represented as ash salts, that are lessons about sexual development which the Creator left for humanity as a guide—a ‘sexual education’.