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Less than eight years remain to achieve the Sustainable Development Goals (SDGs). Numerous authors underlined the importance of language in achieving the SDGs; however, its role in the process remains overlooked. This paper aims to investigate the sustainability understanding among Tanzanian students and graduates, their translation approaches and the awareness of people living outside of universities regarding sustainability and the SDGs. The importance of including language in implementing the SDGs is highlighted, and further research regarding local languages to enhance sustainability awareness is suggested.

This study builds upon an extensive review of the current language of instruction conundrum present in many African countries and embeds the SDGs in this complex situation. Using a Tanzanian University as a case study, a questionnaire was administered to Tanzanian students and graduates, and follow-up interviews were conducted.

Findings suggest that Tanzanian higher education students and graduates are knowledgeable about both sustainability and the SDGs, with most of them integrating at least one goal into their respective research. However, in the interviews conducted, interviewees stated that in their experience, only a minority of people outside of universities are aware of both concepts. The findings indicate that the aim of target 4.7 and, ultimately, the pledge to leave no one behind remain void when African languages continue to be neglected.

A case study is characterized by a lack of generalizability. Findings from this study should, therefore, be transferred cautiously to other African countries and universities. Furthermore, university students and graduates represent highly educated participants, which does not allow deductions to other parts of society.

The authors are not aware of other studies investigating the views of Tanzanian students and graduates regarding sustainability and language and how they handle emerging translation challenges in their research. Furthermore, to the best of the authors’ knowledge, this research is the first to highlight the importance of language in achieving target 4.7 of the SDGs and, ultimately, the pledge to leave no one behind. It, therefore, represents a valuable contribution to the scientific body of knowledge regarding education for sustainable development and language.

Research on sustainability in higher education institutions (HEIs) is unequally distributed globally. The existing publications on sustainability in HEIs have largely focussed on the Global North. Meanwhile, little is known about the state of sustainability in HEIs located in the Global South, and within African HEIs in particular. This study aims to fill this gap and investigates the status of sustainability activities in participating African HEIs.

A Delphi study involving 32 experts from 16 African countries and a total of 29 HEIs was conducted between December 2017 and May 2018. Experts were asked to share their insights on sustainability and Africanisation through an online questionnaire in two rounds.

Although 30 of the 32 participants agreed with the provided definitions of sustainability and sustainable development (two participants did not answer), 11 of the participants commented that important issues such as governance and culture were missing. This trend indicates that the sustainability discussion is still led from a western vantage point. Nevertheless, Africanisation plays a role in around two-thirds of participating HEIs’ sustainability activities, with the language factor representing the most pressing issue.

The findings of this study provide valuable insights into the current state of sustainability activities and Africanisation of participating African HEIs, and the importance of language and culture in this process.

This study is one of few works that have investigated the state of sustainability activities in African HEIs. Furthermore, it adopts a positive stance on sustainability in Africa, rather than focussing on negative circumstances.