Green chemistry focuses on creating chemicals and processes that are safer for people and the environment. Here are the key principles and how they help reduce environmental impact:

1. Prevent Waste: Design processes that generate little or no waste. For example, using all materials efficiently in manufacturing means less leftover waste.
2. Safer Chemicals: Use chemicals that are safe for both humans and nature. For instance, choosing biodegradable cleaning agents over toxic ones reduces harm.
3. Energy Efficiency: Reduce energy use by designing processes that work at lower temperatures or use renewable energy, like solar power, instead of fossil fuels.
4. Renewable Resources: Use materials that can be replenished, like plant-based ingredients, instead of non-renewable resources like oil.
5. Biodegradable Products: Create products that break down naturally after use, like compostable packaging, to minimize pollution.