From Mexico City's smog-eating hospital to Milan's vertical forest, these urban structures use nature to boost air quality and save energy. Read More

Millions of acres of degraded terrain could hold 100 times the current U.S. solar capacity — and avert the environmental tradeoffs of blockbuster solar projects. Read More

Here's why you need to understand upcycling in terms of economics, the environment and social good. Read More

A big retailer, a scrappy startup and a third-party fair trade certifier weigh in on sourcing organic, fair trade, eco-friendly flowers. Read More

It won't be long before solar-plus-battery systems become cheaper than utility-sourced electricity. Read More

Here's how certifications and other tools have moved green cleaning products onto more store shelves. Read More

The Windy City soon will welcome one of the few LEED Platinum factories in the U.S., where environmental cleaning products will be produced.  Read More

Hilton Worldwide's VP of corporate responsibility speaks out about the hotel giant's water, waste and energy initiatives, as well as her path to professional success.  Read More

Structures common in hair and bones have important implications for the future of biomedical devices, building design and beyond. Read More

What happens when conservative activists steal a page from Greenpeace's name-and-shame playbook? Read More