Indicator of quality for environmental articles on Wikipedia at the higher education level

Wikipedia is important in higher education because students and scholars often use it. Nevertheless, the issue of Wikipedia's quality is an obstacle for its use at the higher education level. In order to contribute to this discussion, we have proposed 'Verifiability by respected sources' as an indicator for assessing the quality of Wikipedia articles at the higher education level and conducted an analysis of the most frequently visited articles in the category of Environment on Wikipedia. Results show that these articles contain many unreferenced statements, so their usage at the higher education level is problematic. Therefore, we also propose specific steps for relevant actors that could help to improve the quality of Wikipedia.