Climate change will fundamentally challenge the world's urban centers. Three cities — San Diego, Milan and Jakarta — offer lessons for how to adapt to a warming planet.

Builders knew how to keep people cool in hot, dry climates thousands of years ago. It's time to get that knowledge back.

A month-long study of a man's brain revealed that its volume consistently shrunk over the course of each day and then reset overnight.

Indian authorities believe wolf attacks have killed 10 people in the Bahraich region of Uttar Pradesh in recent months, as fear and confusion grips local villages.

Researchers have identified 12 ancestral plant species from an early Eocene fossil assemblage in Tasmania that once formed part of a giant, circumpolar forest.

Every winter, when sunlight hits at the right angle, visitors to Virginia's First Landing State Park are treated to a mesmerizing rainbow light show courtesy of the park's bald cypress swamp.