According to this study, existing "leafy infrastructure" in ten of the world's largest cities confers an estimated $505 million in benefits. Planting more could magnify the effect.
Jessica Leigh Hester covers a study that puts a dollar value on the positive effects of urban forests. "A team of researchers led by Theodore Endreny of SUNY's College of Environmental Studies and Forestry sought to quantify how leafy infrastructure pays dividends in 10 chock-full cities—and the extent to which the benefits could compound if those areas went greener."
"Many of trees' benevolent effects are general and constant: They help mitigate the heat-island effect, for example, and curb pollution. But the more specific benefits dispersed by trees vary from place to place." Stormwater remediation, for example, doesn't account for much in dry Cairo.
Across the 10 megacities, the study estimates an average of $505 million is saved annually. Lower air pollution makes up the bulk of these savings.
- $482 million per year in decreased air pollution (predominantly from smaller particulate matter, a byproduct of combustion and diesel engines)
- A benefit of $11 million annually through improved stormwater remediation
- A half-million saved in heating and cooling costs
- $8 million in C02 sequestration
Read the full story: How Much Are Trees Worth to Megacities?
Yet More Data on the Value of Trees to the Built Environment
A new report from the Nature Conservancy provides evidence of trees as a crucial component of public-health infrastructure.
Cities Prioritize Urban Reforestation to Combat Heat and Revitalize Communities
Cities like Phoenix, Chicago, and Boise are prioritizing urban reforestation as critical green infrastructure to combat extreme heat, address environmental inequities, and foster community revitalization.
A Framework for Inclusive Tree Planting in Los Angeles
The Los Angeles Urban Forest Equity Collective has developed an equity-centered tree-planting framework and toolkit to address historic underinvestment and mitigate extreme heat in vulnerable neighborhoods.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
Amtrak, CN end decades-long dispute with eight-year agreement
The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.
Northwest rail fans eager for Sept. 30 debut of Amtrak’s Airo fleet
Get ready for that new train smell and more seats. But they won’t go faster or run more frequently on the Cascades route in Washington and Oregon.
Trump administration unlawfully slashed $7 billion in clean energy grants, judge rules
The Environmental Protection Agency ended the Solar For All program, which provided the grants, after President Donald Trump’s inauguration.
Record-breaking wildlife overpass in Colorado brings 91% reduction in animal collisions
Prior to the overpass, vehicles were hitting one deer per day on Colorado’s Interstate 25.
California lawmakers approve just 5% of much-needed LA28 transportation funding
State legislators appear just as unwilling as Trump to pay for Olympics-related transportation projects.
FREE Course: Walkable City 1: Why Walkability?
After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.
Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold
The course focuses on the opportunities and imperatives that shape reinvention of mall sites.
City of Thousand Oaks
City of Wisconsin Rapids
Harvard University Graduate School of Design
The Architects Foundation
University of Cincinnati Online
The Pocatello Development Authority
The Urban Renewal Agency of the City of Pocatello