This new community will have 21,000 homes – and net zero carbon emissions, developer says

Source: CNBC — 

A new housing model is rising from the dirt in Valencia, California, and potentially raising the bar for real estate developers hoping to reduce their carbon footprints.

More than 21,000 homes are going up in a brand-new community that, its developer says, will be the largest net-zero community in the nation, and potentially the world. In other words, it will leave no carbon footprint.