Sustainable development refers to a way of progress that meets the needs of the present without compromising the ability of future generations to meet their own needs. It focuses on balancing economic growth, environmental protection, and social well-being. This means using natural resources responsibly, reducing pollution, and promoting practices like renewable energy, conservation, and waste management. Sustainable development also emphasizes equality, ensuring that all people have access to basic necessities such as food, water, education, and healthcare. By adopting sustainable practices, societies can create long-term prosperity while preserving the planet for future generations.