And they're not the only ones advancing renewables in creative ways this year.
Multi-use trails are an infrastructure asset for cities and communities — why aren't we prioritizing them?
We can make sure that cities are successful with a downtown experiment: the business improvement district (BID).
After a fire, a community comes together to identify seven possible solutions to stay resilient for future disasters.
Here's how to accelerate urban climate solutions.
The back story of Philadelphia's plan to build a 70-megawatt plant that will power up to 22 percent of its municipal government.
After a decade of debate, concerns and confusion still exist but success in other cities may prove a useful bellwether.
As public awareness of composting models grows, a new vision is emerging.
Energy, water, food, materials, nutrients enter urban ecosystems and leave as emissions and waste. Here's how can cities turn this situation around.
With the constant turnover of land, many American cities are facing legacy hazardous waste that they didn't even know was there.