A new study shows city trees absorb more carbon dioxide than other urban plants and can sometimes balance daily traffic emissions.

Trees have long been appreciated for adding beauty, shade and a sense of refuge to our cities. Urban street trees offer a host of ecological benefits, too: combating the heat island effect and ...

To stop California’s 6 million urban trees from knocking out power lines, crashing through houses, or lying across streets when they die, humans have to intervene. This week, a handful of arborists ...

The recently launched Treepedia from the Senseable City Lab at the Massachusetts Institute of Technology (MIT) visualizes the “green canopy” of street trees in cities around the world. Harnessing the ...

Earth is hotter than it has been in 125,000 years, scientists say, and Las Vegas continues to break temperature records. The extreme heat claimed more than 500 lives in southern Nevada last year alone ...

A new study shows that the shape of urban trees affects how pollen travels through the air, which could help cities reduce allergy exposure.

Despite setbacks, over 90% of the trees in the replacement project have been successfully planted. The city aims to improve its urban tree canopy and address issues like urban heat islands. After ...

Conservation Corps of Long Beach worker Maurice Lopez, right, watches Tito Leulusoo move a large piece of wood at an urban lumber yard at Willow Springs Park in Long Beach. (Allen J. Schaben / Los ...