1. Sustainable development aims to meet present needs without compromising future generations' ability to meet their own needs. It was first discussed in the 1970s and defined in the 1987 Brundtland Commission report.
2. Issues like climate change, natural disasters, and deforestation are at the core of sustainable development. Ignoring it could lead to risks such as rising seas, droughts, and species extinction.
3. Watershed management is the sustainable use and conservation of land and water resources through practices like soil erosion prevention, afforestation, and grassland development to maximize production while minimizing environmental impacts.