Eco-friendly buildings, green roofs, solar panels, wind turbines, recycled materials, minimalist design, natural ventilation systems, rainwater harvesting systems, grey water reuse, composting toilets, organic gardens, urban farming, vertical farming, living walls, breathing facades, double glazing, low-carbon footprint, energy-efficient systems, renewable energy sources, sustainable urban planning, walkable neighborhoods, bike-friendly infrastructure, public transportation hubs, electric vehicle charging stations, zero-waste policies, circular economy principles, biophilic architecture, natural light optimization, passive house design, earthship-inspired structures.