A revealing comparison in how we've come to use two very different modes of transportation.
And many of those who do are planning to stock up on 40 and 60 watt bulbs.
From now on, the city's building code will require new residential construction to include "cool roofs" capable of reflecting sunlight.
A new report ranks 34 major U.S. cities by their energy-use policies.
And where they pay the heaviest price for it.
What if city officials really understood how solar panels catch on?
SolarFloors, Urban Parasols and infra-red under-table heating.
A new report suggests it would be better for the environment to tear them all down.
Should federal mortgage guidelines take this into account?
It could also catch criminals, broadcast WiFi and... detect meth labs?
How the world's wealthiest cities can beat back climate change.
Meet the federal government's four-bed, three-bath, two-car garage, 2,700-square foot suburban net-zero home.
The compactness of cities may not be a determining factor when it comes to energy use.
San Diego County has made it easy for its cities to convert to energy-efficient streetlights.
Most smaller commercial buildings can't afford energy retrofits on their own. But what if they banded together?
How the urban 'network' allows residents to live more efficiently at a number of levels.
A new report suggests that retrofitting is almost always more energy efficient
Seattle tests a code that would allow architects to decide how to best reduce energy waste
City programs slowly turn an oil city green
Tucson residents have long seen their low-water landscaping choices as superior to their neighbors in Phoenix. Now researchers are trying to apply the same principle to all utility usage