Now that its traffic-banishing shuttle system has gone electric, Zion Canyon is quieter, cleaner and a more welcoming home for wildlife.

See what stories caught our attention this week, from a decrease in plastic litter on beaches to futuristic new ferry technology.

Happy New Year! And welcome to our annual look back at the brightest, boldest ways the world improved, evolved or otherwise changed for the better. This epic list is a cornucopia of hopeful facts ...

The popularity of WhatsApp in rural India has made Tangde and Kamble’s work faster and safer. Credit: Parth MN Tangde and Kamble are child rights activists in the district of Beed in India’s western ...

Chinampas — an ingenious adaptation to the Valley of Mexico's lake-filled landscape — could hold lessons for cities around the world.

With “green corridors” that mimic the natural forest, Medellín is driving down temperatures — and could become five degrees cooler over the next few decades.

Waterline is an ongoing series that explores the solutions making rivers, waterways and ocean food chains healthier. It is funded by a grant from the Walton Family Foundation. About a week before the ...

The Catalan city is making big moves to get visitation and its impacts under control — and other European destinations are taking action, too.

Solar power has transformed life in Africa. Now, as the aging devices begin to break down, “solar entrepreneurs” are keeping them — and local economies — humming.

A growing conservation burial movement is challenging the funeral industry’s environmental footprint while healing the land.

This is part two of a three-part series about smart ways cities are solving the problems caused by cars. Read part one here. During the peak of morning rush hour, the pretty, tree-lined streets along ...

Though many cities have extreme-weather refuges, Barcelona's sprawling network — spanning museums, libraries, sports clubs and shopping malls — stands out from the pack.