Sustainable Development: The concept of meeting present needs without compromising future generations' ability to meet their own needs by considering environmental, social, and economic factors. Imagine driving an electric car powered by renewable energy sources instead of relying on fossil fuels to protect both nature and future generations.
Ecological Footprint: The measure of human demand on Earth's ecosystems based on resources consumed and waste produced. It's like figuring out how much space you personally take up in terms of land and resources compared to what nature can sustainably provide.
Environmental Degradation: The deterioration or destruction of natural resources due to human activities such as pollution, overexploitation, habitat destruction, etc. Picture cutting down all trees in an area until there's nothing left but barren land.