Carbon nanodots (CNDs) a novel class of carbonaceous nanomaterials, have sparked much attention due to their intriguing properties. These recently developed nanodots, with their low toxicity and other beneficial properties, have surpassed conventional semiconductor quantum dots. Research on CNDs has increasingly focused on synthesis techniques and applications in biology. The potential of microwave-assisted techniques, which can provide intense and efficient energy to reduce reaction time, has been a key area of interest. In this study, we present a microwave-assisted method for creating luminous and water-soluble CNDs from different sources. This method is not only efficient but also environmentally friendly, as it is 'green,' quick, and waste-reusable, providing reassurance about its sustainability. Additionally, Thus, a review and discussion of research publications pertaining to the environmentally friendly synthesis and uses of carbon nanomaterials with microwave assistance are conducted.