Trees

Aerial view of Annapolis, Maryland.

Annapolis Unveils Interactive Map to Boost Urban Tree Canopy

Annapolis has launched an interactive Tree Canopy Map to engage residents in urban forestry efforts, highlighting tree coverage data and encouraging community involvement to achieve the city’s 50 percent canopy goal by 2050.

January 26, 2025 - Eye on Annapolis

Aerial view of residential buildings in Koreatown, Los Angeles with downtown skyline in background

The Urban Heat Divide: Addressing LA’s Thermal Inequities

LA's thermal inequities leave low-income, minority neighborhoods disproportionately hotter and more vulnerable, prompting advocacy and policy efforts to address these disparities through green infrastructure and equitable climate investments.

January 21, 2025 - Los Angeles Downtown News

Looking up at a grove of mature hemlock trees on a sunny day.

Fighting Forest Pests With AI: A Hemlock Success Story

Fairfax County utilized GeoAI and ArcGIS technology to efficiently map and protect its hemlock trees from the invasive woolly adelgid, ensuring targeted pest management and preservation of its evergreen canopy.

January 21, 2025 - ARCNEWS

Large trees on either side of wide suburban street.

How AI Is Revolutionizing Urban Forestry and Climate Resilience

Tree-D Fusion, an AI-driven tool developed by MIT and Purdue researchers, generates 3D models of urban trees to help city planners visualize future green spaces, address climate challenges, and enhance urban livability and sustainability.

January 13, 2025 - Wood Central

Bus stop with agave mosaic in Phoenix, Arizona.

Phoenix Shade Plan Focuses on Bus Stops

The city’s updated Shade Master Plan calls for trees and built structures at bus stops to protect residents from heat.

January 9, 2025 - Smart Cities Dive

Large mature oak trees with sun filtering through.

Oak Survival in the Great Lakes: Adapting to a Changing World

Climate change is endangering oaks in the Great Lakes region by increasing their vulnerability to pests, diseases, and extreme weather, threatening their vital ecological role.

January 1, 2025 - Planet Detroit

View of St. Louis cathedral in New Orleans, Louisiana.

New Orleans Seeks Consultants for $8M Tree Planting Initiative

The city seeks consultancy firms to help implement an $8 million USDA Urban and Community Forestry Grant, advancing its goal of planting 40,000 trees by 2030 and strengthening urban sustainability and resilience.

December 30, 2024 - Biz New Orleans

View of San Francisco Bay on sunny day from residential area of Oakland, California.

Oakland Adopts Urban Forest Plan to Foster Equity and Environmental Justice

The Oakland City Council has adopted its first Urban Forest Plan, a 50-year roadmap focused on equitable tree care, canopy preservation, and environmental justice to benefit underserved communities.

December 23, 2024 - City of Oakland

Small trees on city sidewlak with glass buildings in background.

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.

December 20, 2024 - USGBC

Public stairs in Los Angeles, California painted with rainbow and red hearts.

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.

December 10, 2024 - UCLA Luskin Center for Innovation

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

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.