We have long known that urban trees help mitigate air pollution. But what about questions of how significant that mitigation is, how we track it, and where it occurs? A 2014 paper, “Assessing the relationship among urban trees, nitrogen dioxide, and respiratory health” by Linda George, Meenkashi Rao, Todd Rosenstiel, Vivek Shandas, and Alexis Dinno… More
Meticulously designed around the needs of patients and their families, the William P. Clements Jr. University Hospital at the University of Texas Southwestern Medical Center in Dallas, is a state of the art facility. Through innovative planning that was five years in the making, patients’ needs are met outside, on the hospital grounds, as much… More
I’ve always wondered why we use the word parking to describe a place to leave a car. The word evokes images of my neighborhood park, playgrounds, or Central Park: lush green spaces not places easily reconciled with a patch of asphalt. A few years ago while I was working at the New York City Department… More
It’s Memorial Day here is the U.S., so our office is closed. For readers in other countries – or people who just want a little distraction on the holiday weekend – here are five articles we read recently and really enjoyed. From the practical to the personal, these pieces all offer some new perspective on… More
In March we hosted a webinar where Jonathan Page, an engineer working in Dr. Bill Hunt’s lab at North Carolina State University (NCSU), provided a stormwater engineering perspective on the design principles, treatment processes, and implementation of using Silva Cells as a stormwater control measure. Current research findings and a design case study were included in… More
Unless you’ve been living under a rock for the past 3 years, you know that California is having a major drought. According to the Institute for Public Policy, the three-year period between 2011 and 2014 were the driest on record since record keeping began in 1895, made worse by record high temperatures in 2014. It’s… More
Authorized by Congress in 1996, the Martin Luther King, Jr. National Memorial in Washington, DC is a groundbreaking project. Following nearly 20 years of development and construction, it is the first memorial on the National Mall to be dedicated to an African American, and one of only a few dedicated to non-presidents. The site, a… More
Research shows that tree stormwater control measures (SCMs) provide excellent stormwater benefits. With trees, however, come leaves – and leaf litter that falls on impervious street surfaces can actually add unwanted nutrients to stormwater runoff (leaf litter provides many benefits on pervious surfaces). The contribution of leaf litter to nutrients in stormwater runoff is more… More
What’s happening in Texas? As far as we can tell, a lot. The Lone Star state is making some huge investments in sustainable development, including green infrastructure. L. Peter MacDonagh, FASLA – who has visited the state many times over the years, and twice in the last few months to speak about using trees and soils… More
Unmanned Aerial Vehicles (UAVS) – aka drones – are all over the news. As they get lighter and more affordable, the applications for their use widen. Brian Ritter, an ISA Certified Arborist, Registered Forester, and current PhD candidate in Forest Resources at Clemson University, studied their applications in urban forest inventories, summarizing his research in… More
Located at the base of the Rocky Mountain foothills and home to the main campus of the University of Colorado, the City of Boulder is a vibrant town with a long history of smart growth, citizen driven investment in public spaces, and alternative transportation such as bike lanes and pedestrian-only thoroughfares. In recent years a… More
OpenTreeMaps are collaborative, crowd-sourced projects where citizens help inventory urban trees, learn about the environmental benefits trees provide and explore nature in their city. Kelaine Ravdin, owner of Urban Ecos, has worked as the project lead on OpenTreeMap projects across California, including Sacramento, San Francisco, San Diego, and Los Angeles. Kelaine’s work blends a deep… More
Soil. Stormwater. Sustainable Infrastructure.
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