Trees

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.

Mapping a Greener Future: Cal Poly Tackles Urban Canopy Challenges

Cal Poly, in partnership with Cal Fire, is leading the development of California’s new Strategic Plan for Urban Forestry, combining advanced data tools and interdisciplinary collaboration to expand tree canopy cover.

December 9, 2024 - Cal Poly News

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

Global Report Shows Urban Forests Failing to Meet Vital Standards

The study reveals significant gaps in urban forestry, emphasizing the urgent need for reforms, innovative planting solutions, and expanded tree canopy to combat climate change and improve urban health.

December 9, 2024 - The Conversation

View looking up through large tree with blue sunny sky in background.

Improving South Los Angeles Through Strategic Tree Planting

The University of Southern California Urban Trees Initiative is planting 250 trees in South L.A. neighborhoods to improve shade, combat climate change, and enhance community well-being through collaboration and data-driven approaches.

November 25, 2024 - USC Today

Paved walkway with a few people in lush green city park with large trees and benches.

Quantifying How Urban Trees Cool Cities

A new tool can help cities understand the benefits of tree planting efforts at the municipal scale.

November 7, 2024 - Phys.org

Two people walking under large trees in Griffith Park, Los Angeles, California.

Branching Out: Building Health and Equity Through Community Forestry

Los Angeles County’s Community Forest Management Plan seeks to create a healthier, more equitable community forest by expanding tree coverage, engaging communities, and building resilience to climate impacts.

November 1, 2024 - National Recreation and Park Association Open Space Blog

Longleaf pine prairie in the Savage Christmas Creek Preserve near Orlando, Florida.

Harnessing GIS and Fire for Longleaf Pine Conservation

Scientists in Florida are using GIS technology to strategically manage prescribed burns, aiding in the restoration and biodiversity of longleaf pine ecosystems while enhancing climate resilience across the Southeast.

October 23, 2024 - Esri Blog

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

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

Hand holding up an analog thermometer outdoors with trees in background.

Study: Urban Trees Lose Cooling Benefits in Extreme Heat

A robust tree canopy can help reduce the urban heat island effect and lower air temperatures, but the impact is reduced as temperatures rise.

August 14, 2024 - University of New South Wales

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

View of downtown Pittsburgh, PA with colorful fall trees in foreground.

Pittsburgh Nonprofit Awarded $200K for Urban Trees

The USDA grant is focused on providing disease-resistant fruit trees to local residents.

July 16, 2024 - Lancaster Farming

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

Two large California live oaks in a field of dry grass.

California’s Live Oaks in Focus

The new exhibit explores the hidden network that allows heritage coast live oak trees to communicate with one another.

April 4, 2024 - Outlook Valley Sun

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.

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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.