Casinos can apply principles from environmental technology to improve sustainability in several impactful ways, starting with energy efficiency initiatives such as the adoption of LED lighting, high-efficiency HVAC systems, and smart building technologies that optimize energy use based on real-time occupancy data. By investing in renewable energy sources like solar and wind, casinos can reduce their carbon footprint and reliance on fossil fuels. Water conservation technologies, including low-flow fixtures and greywater recycling systems, can significantly diminish water usage in large facilities.