Tree Canopy

Large trees on street in Las Vegas at night.

Urban Trees Have Bigger Impact in Hot, Dry Cities

The cooling effect of robust urban tree canopies is more pronounced in hotter, drier cities like Phoenix and Las Vegas.

October 22, 2024 - U.S. Geological Survey

Mature jacaranda trees full of purple blooms on street in Los Angeles, California.

Addressing Tree Canopy Disparity in South Los Angeles

A new study highlights the complex challenge of addressing tree canopy disparities in South L.A., where historical environmental injustices, budget constraints, and competing community priorities hinder efforts to increase equitable tree coverage.

October 21, 2024 - Los Angeles Times

Trees in a schoolyard.

Green Schoolyards Offer Respite From Urban Heat

More schools are transforming asphalt-covered playgrounds into shady oases that help reduce temperatures and absorb emissions.

September 18, 2024 - La Voce di New York

City park with paved walkway, green trees, and people sitting on lawn.

New Study Shows How Urban Trees Improve Public Health

Louisville's Green Heart project demonstrates that strategically planting trees in underserved neighborhoods can significantly reduce inflammation levels, highlighting the health benefits of urban greenery through a novel, data-driven approach.

September 16, 2024 - Bloomberg

Pioneer Square, Seattle

Symposium Highlights the Crucial Role of Trees in Combatting Extreme Heat

Experts emphasize that planting and maintaining trees in urban areas is essential for reducing extreme heat, cooling cities, and preventing heat-related illnesses, especially as heatwaves become more frequent and severe.

September 9, 2024 - ABC 7 Eyewitness News

Aerial view of Tacoma, Washington residential neighborhood with mature trees.

Tacoma Program Offers Free Street Trees

The Green Blocks program targets neighborhoods with the highest need for additional tree canopy.

September 4, 2024 - The Urbanist

Worker trims tall palm tree.

Planning for the End-of-Life of Urban Trees

Many of California’s 6 million urban trees are reaching the end of their lives. Arborists in Long Beach are turning them into useful lumber.

August 21, 2024 - Governing

Tall mature green trees lining a concrete walkway next to a street with multistory apartment buildings on other side and sun filtering through the leaves.

The Economic Value of Street Trees

Far from just providing shade and improving air quality, trees can also contribute to more resilient roads, lower energy costs, and reduced flood risk.

August 12, 2024 - Strong Towns

View of Portland skyline with green trees in foreground.

Invasive Beetles Put Oregon Forests at Risk

Two recently discovered borer beetles could lead to a significant loss of tree canopy.

July 16, 2024 - OPB

Manzanita tree against red rock desert background.

Planting for the Future: The Urban Trees of Tomorrow

How urban forest managers are preparing urban tree canopies for tomorrow’s climates.

May 30, 2024 - Wired

Close-up on young tree planted on urban median flanked by a sidewalk and a bike lane.

Planting Trees Where They are Most Needed

Recently, the U.S. Forest Service awarded over $1 billion in competitive grants to expand equitable access to trees and their benefits. Grantees include Los Angeles County and TreePeople, who are working to plant trees where they are most needed.

May 7, 2024 - United States Forest Service

Purple jacaranda trees in bloom in Los Angeles with tall white Art Deco buildings in background.

LA County Releases Draft Community Forest Management Plan

LA County's Chief Sustainability Office just released the discussion draft of Room to Grow, the first Community Forest Management Plan for the county.

April 21, 2024 - Los Angeles County Chief Sustainability Office

Mature jacaranda trees full of purple blooms on street in Los Angeles, California.

Expanding LA's Urban Forest

The County of Los Angeles Chief Sustainability Office is leading the effort to prepare the county's first Urban Forest Management Plan.

March 19, 2024 - Los Angeles County Chief Sustainability Office

Group of people planting a small tree.

Southern California Water District Offers $100 Rebate for Planting Trees

Residents and businesses can choose from a list of eligible trees to support efforts to boost urban tree canopies and help with stormwater retention.

March 14, 2024 - Smart Cities Dive

View of One World Trade Center down straight street with bright green trees on either side.

Tree Folio NYC Aims to Monitor Urban Forest in Real Time

A new tool could help the city reach its goal of planting up to 250,000 new trees by 2035.

January 11, 2024 - Yahoo News

Sunset view of tall palm trees and shorter trees lining empty street with Los Angeles skyline and crescent moon in background.

Los Angeles Seeks Public Input for Urban Forest Plans

The County and City of Los Angeles are working together on community engagement efforts for their Urban Forest Management Plans (UFMPs).

January 9, 2024 - County of Los Angeles

Pedestrian bridge with benches in Rochester, New York with brick buildings in background.

Rochester Updating Urban Forest Master Plan

The City of Rochester (NY) is working on an update to its Urban Forest Master Plan. This updates includes a community outreach process and addresses key issues such as environmental justice, climate change, and educational opportunities.

January 2, 2024 - RochesterFirst.com

Tree stump in an urban sidewalk

The Maintenance Gap in Tree Planting Programs

Tree planting is a highly visible way to show investment in a community, but without regular maintenance, street trees can become a nuisance rather than a benefit.

June 28, 2023 - Smart Cities Dive

Seattle skyline panorama seen from Kerry Park at sunset in golden evening light with Mount Rainier in the background, Washington State, United States of America

Washington Cities Balance Housing Development and Tree Canopy

Cities like Seattle and Bellingham are working to increase housing density while also preserving urban trees and green spaces.

May 3, 2023 - The Urbanist

Aerial view of green trees over residential neighborhood with Austin, Texas skyline in the background

Street Trees as Climate Resilience

An Austin-based urban designer explains how protecting and encouraging the planting of street trees will make the city more resilient to increasingly common extreme heat events, among many other benefits.

April 3, 2023 - Diana Ionescu

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.