This issue features the proceedings of the International Conference on Green and Sustainable Development, held from 10th to 12th March 2025 at the Serena Hotel in Kigali, Rwanda. The conference brought together researchers, policymakers, and industry leaders to share insights, innovations, and strategies aimed at advancing sustainability and promoting environmentally responsible development. The presentations and discussions showcased cutting-edge research and practical solutions addressing global challenges in climate change, renewable energy, sustainable cities, and green economies.https://doi.org/10.70970/xmg2gt02