Depletion refers to the gradual reduction or exhaustion of natural resources, such as water, minerals, forests, and fossil fuels, due to human consumption and exploitation. This research area focuses on understanding the factors contributing to resource depletion, assessing the environmental and socio-economic impacts of depletion, and developing strategies for sustainable resource management and conservation. Depletion research aims to address the challenges of maintaining resource availability for current and future generations while minimizing negative environmental impacts and promoting sustainable development.