Severe storms, tornadoes, snow, and ice will hit the U.S. through next week, causing travel issues, power outages, and ...

A powerful storm system will bring a mix of snow, rain and severe weather to the central and eastern U.S. this weekend, impacting a wide swath of the country.

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 ...