January 29, 2016, 1pm PST
New research reveals more of the details of how trees provide therapeutic effects for humans.
November 11, 2015, 10am PST
More and more evidence has emerged in recent years about the many benefits of trees in urban environments. Every now and then, however, a study finds evidence that tress might not always be as benevolent as they seem.
October 26, 2015, 12pm PDT
Citizens in developing corners of the world are prioritizing green infrastructure as they struggle to deal with the environmental consequences of rapid growth.
July 22, 2014, 1pm PDT
Victoria Dailey has some strong words for the palm tree in its various forms around Los Angeles in a long read for the Los Angeles Review of Books.
Los Angeles Review of Books
May 20, 2014, 9am PDT
"What does a city look like drawn in trees?" Cambridge, Massachusetts recently released an exhaustive database of all the trees on public property around the city.
July 15, 2013, 7am PDT
A new study published in the journal Environmental Pollution makes the first conclusive case for the ability of urban foliage to reduce fine particle pollution, reducing breathing problems and saving lives in the process.
September 28, 2012, 11am PDT
A recent study by the U.S. Forest Service shows that out of 20 cities surveyed, 19 showed a decline in tree cover. With their demonstrated benefits to public health, property values, and reducing pollution, Tod Newcombe asks why they're disappearing.
July 1, 2012, 1pm PDT
The City of Pittsburgh, PA has announced an "urban forest master plan" to add more foliage to the 2.5 million trees already covering the city.
The Pittsburg Post-Gazette
May 30, 2012, 8am PDT
A new study published in the June issue of <em>Landscape and Urban Planning</em> intends to settle once and for all the debate about whether urban trees provide a deterrent or inducement for crime, writes Eric Jaffe.
May 27, 2012, 1pm PDT
Tim De Chant compares satellite images of neighborhoods from cities around the world to see if inequality is manifest in the patterns of the landscape. The differences are striking.
April 12, 2012, 5am PDT
Nate Berg reports on several recent pilot studies that have quantified the economic, aesthetic and energy saving benefits of urban trees and why the costs for replacing them can be formidable.
February 14, 2012, 5am PST
A world first study explicitly demonstrates that large trees in urban parks are “keystone structures” that help provide important habitat and contribute to the richness, abundance and breeding of birds, reports Megan Doherty.