"Create a vivid, futuristic image of a green cityscape symbolizing zero cost and zero carbon emissions. In the foreground, show a lush park with vibrant greenery, solar panels, and wind turbines, all seamlessly integrated into the city’s infrastructure. Display skyscrapers covered with green roofs and vertical gardens. Add transparent signage reading '0 Cost' and '0% Carbon,' emphasizing sustainable and free access to renewable energy. Make the setting bright and clean, with clear blue skies, sunlight illuminating eco-friendly details, and people enjoying the zero-cost, green energy environment.