Metro Phoenix residents, it's time to brag about how nice the weather is as winter storms hit the U.S. Even with rain in the ...

Phoenix has a long history shaped by ancient civilizations, frontier expansion, and economic booms. The Hohokam built canals ...

More than half of the world's people live in cities. By 2050, it will be nearly seven in ten. Cities account for more than 70% of global carbon emissions and 60-80% of energy consumption. Rapid ...