For now at least, the country's most sustainable form of urbanism is relegated to pilot projects.
Why heat a whole building when infrared beams of warmth could follow us each around?
In Buenos Aires, thousands of informal workers are ready to take on the task of improving the city's trash woes, if only the government would let them.
The people and ideas reshaping urban life
Revisiting Ernest Callenbach's controversial portrait of a more sustainable America.
Rejoice, America: Researchers say the nation is equipped to produce "serious amounts" of algae biofuel.
The country's almost laboratory-like conditions are a perfect place to measure the effect of human urban development on temperature.
Texas leads the nation in wind power; in Washington, hydroelectric dams provide 60 percent of the state’s energy.
The key, according to a new report, is forming partnerships with farmers.
Building wind turbines isn’t cheap. But it will mean about $100,000 in energy savings each year for two small towns.
A contest in Ohio gets 4,000 kids biking more than 52,000 miles, while keeping roughly 57,292 pounds of carbon dioxide out of the air.
If used right, online grocery services like Peapod and FreshDirect could help reduce greenhouse-gas emissions.
Some surprisingly not-so-unrealistic plans to capture unused energy all around us.
For starters, don't tell them it'll help fight climate change or "protect the environment."
20 years ago, there were 50,000 rivers in China. Now, more than 28,000 of these rivers are missing. Why?
Ideas for helping cities better manage their enormous waste streams.
Poor design and over-development have put our burgeoning urban centers at serious risk.
The capital of Bangladesh is spinning into an asphalt crisis.
Water access and infrastructure concerns will only heighten as the country shifts toward an urban majority.