UNESCO invites nominations for the Sultan Qaboos Prize for Environmental Conservation to recognize outstanding contributions to the management or preservation of the environment. Eligible candidates include individuals, groups of individuals, institutes, and organizations that have made significant impacts through environmental and natural resources research, environmental education and training, or the creation of protected areas such as biosphere reserves and World Heritage sites. The prize consists of a diploma and a financial award of US$100 thousand. The deadline for nominations is 15 June 2026. Prize for Environmental Preservation