Renewable energy integration involves incorporating solar, wind, and other renewable sources into urban energy grids. This approach helps cities reduce reliance on fossil fuels and lower carbon emissions.

Efficient resource management explores ways to reduce waste and promote the reuse of materials. The circular economy emphasizes recycling, repurposing, and minimizing waste in urban environments.

Waste reduction and recycling technology focus on innovative solutions to manage and reduce urban waste. This includes advanced recycling techniques, waste-to-energy systems, and strategies to minimize landfill use.