Across North America, hundreds of downtowns, college campuses and hospitals are heated by steam carried through networks of underground pipes. Electric companies installed many of these "steam loops" ...

Across North America, hundreds of downtowns, colleges and hospitals are heated by steam carried through underground pipes - sounds like something out of a bygone era. But as Susan Phillips of member ...

Tucked beneath a 48-story San Francisco skyscraper, at the far end of the parking lot on the first subbasement level, is a door with a keypad lock. An unimposing sign reads "Utility Meter Room." ...

"Steam loops" under hundreds of U.S. cities and universities have warmed buildings for a century. Now they could become a climate change solution. 'Steam loops' under many cities could be a climate ...