As cities grow, so does the need for urban trees

A U.S. Forest Service study stresses the economic importance of urban canopies, which already provide a…

Giant hybrid tumbleweed spreads in California

Once isolated to the Central Valley, the hybrid tumbleweed Salsola ryanii is making moves — and fast.

Lights! Camera! Tragedy! Famous 'cursed' movies

Troubles on the set and suspicious deaths helped to cultivate a nasty reputation for these cursed…

Front-yard veggie gardeners declare victory

Couple who had to tear up a front-yard veggie garden they had tended for 20 years…

Chernobyl shines again as a solar farm

When you can't harvest crops, why not harvest the sun?

Unhealthy air plagues our national parks, just like it plagues our cities

The air at 85% of national parks is unhealthy at times, report finds, building on a…

Trees are the not-so-secret weapon in keeping cities cool

Researchers from the University of Wisconsin-Madison find that city blocks with 40% or more tree coverage…

London gets its first 3D crosswalk and it's a traffic-slowing beauty

Located in northwest London, it's the first optical illusion-y pedestrian crossing in the U.K.

How making lower Manhattan larger will protect it from future flooding

Mayor Bill de Blasio's $10B climate resiliency plan would extend the Manhattan shoreline by as much…

Artists transform old Ikea furniture into 'wildhomes' for urban wildlife

Birds, bees, bats and bees in one London park just got swank new digs courtesy of…