Tree Canopy

People drinking at outdoor tables in front of Bua bar on the Open Street, a car-free pedestrian zone, on St. Mark's Place in the East Village, Manhattan, New York City

NYC will add nearly 10,000 acres of ‘urban forest’ by 2040

The city aims to increase canopy tree coverage by nearly 30% to cool streets and decrease heat-related illness.

August 24, 2026 - Brooklyn Paper

Children walking on a wooden walkway over green creek bed in Copenhagen, Denmark.

Copenhagen is losing its cool

In a city long designed to maximize light during dark Scandinavian winters, climate change is forcing the Danish capital to rethink its relationship with the sun.

July 9, 2026 - Emilie K. Adin

Two people walking on wide sidewalk shaded by mature trees in Malaga, Spain.

Green blocks are up to 4 degrees cooler than treeless streets

The difference in temperature created by urban trees can translate to as much as 40% less excess heat.

May 7, 2026 - Green Spaces Coalition

A wide-angle overview of a busy street at Downtown Austin, with modern skyscrapers towering in background, on a bright sunny Autumn day.

Austin uses satellite data to find gaps in its tree canopy

Layering tree data, heat risk and demographics information is helping the city implement its Climate Equity Plan.

April 27, 2026 - Smart Cities Dive

Workers in orange shirts trimming large street trees in downtown Los ANgeles, California.

LA’s Tree Canopy is Nearing a ‘Point of Failure’

Calls to 311 for “tree emergencies” are rising, endangering a resource that helps bring down urban temperatures and reduce air pollution.

March 27, 2026 - Crosstown

Street in Seattle, Washington with large trees shading sidewalk with glass storefront.

Washington Urban Forestry Program Faces 'Existential' Budget Cut

A proposed budget eliminates funding for a key urban forestry program that funds greening efforts across the state.

March 2, 2026 - The Urbanist

Three people standing next to freshly planted tree, posing for photo.

Houston Nonprofit Plants its Millionth Tree

Trees for Houston works with private and public landowners to distribute trees across the city and help restore Houston’s shrinking tree canopy.

February 23, 2026 - Urban Edge

Map of food forests and community gardens in Denver, CO.

Denver, Colorado Bursts with Dozens of 'Food Forests'

Denver Urban Gardens is building green spaces that clean the air and offer free, fresh fruit to neighbors.

October 3, 2025 - Civil Eats

Man in tree cutting branch with chainsaw.

Seattle Conflict Between Trees and Housing Heats up

A 2023 update to Seattle’s tree ordinance has led to sharp increase in the number of trees being cut down for redevelopment, prompting advocates to call for better protection of the city’s tree canopy.

September 19, 2025 - Associated Press

Aerial view of the Atlanta Beltline walking and biking trail with mid-rise buildings on either side.

Mapping Georgia’s Urban Forests

Georgia Tech’s latest urban canopy assessment for Atlanta uses high-resolution mapping and a Potential Planting Index to guide data-driven tree preservation.

August 11, 2025 - Georgia Tech News Center

Birmingham, Alabama

How Data is Helping Protect Campus Trees

The University of Alabama at Birmingham is using GIS technology, student engagement, and sustainability-driven planning to manage and protect its nationally recognized urban forest.

August 4, 2025 - UAB Reporter

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

Planting for Change: How Trees Are Powering Climate Action

"Combating Climate Change with Trees" highlights how Southern California communities are strategically planting and nurturing urban forests to cool neighborhoods, improve air quality, and advance environmental justice.

July 21, 2025 - PBS

Man sitting on bench sillhouetted against golden hour trees in tranquil park.

‘Smart Surfaces’ Policy Guide Offers Advice for Building and Maintaining Urban Tree Canopies

Healthy, robust tree canopies can reduce the impacts of extreme heat and improve air quality.

April 30, 2025 - Smart Cities Dive

Brick school building with mid-sized tree on front lawn.

Alabama School Forestry Initiative Brings Trees to Schoolyards

Trees can improve physical and mental health for students and commnity members.

April 25, 2025 - Governing

Looking out at trees on 4th Street in downtown Los Angeles, California.

LA’s Tree Emergency Goes Beyond Vandalism

After a vandal destroyed dozens of downtown LA trees, Mayor Karen Bass vowed to replace them. Days later, she slashed the city’s tree budget.

April 23, 2025 - Torched

"Welcome to fabulous Las Vegas Nevada" sign with mottled shade from palm tree.

Planting Relief: Tackling Las Vegas Heat One Tree at a Time

Nevada Plants, a Las Vegas-based nonprofit, is combating the city’s extreme urban heat by giving away trees to residents in underserved neighborhoods, promoting shade, sustainability, and community health.

April 10, 2025 - KTNV

Downtown Los Angeles skyline viewed from a distance with freeway and trees in foreground.

Updating LA’s Tree Rules Could Bring More Shade to Underserved Neighborhoods

A new USC study finds that relaxing Los Angeles’ outdated tree planting guidelines could significantly expand urban tree canopy and reduce shade disparities in lower-income neighborhoods, though infrastructure investments are also needed.

April 3, 2025 - USC Dornsife

Small tree in bloom with pink flowers in front of home in Toronto, Canada.

The Most Popular Tree on Google?

Meet Rodney: the Toronto tree getting rave reviews.

March 21, 2025 - Toronto Star

Quiet tree-lined street in Stockholm, Sweden in summer.

‘Stockholm Tree Pit’ Saves Dying Urban Trees

After noticing that two-thirds of its trees were dying, Stockholm developed a new planting method to protect trees surrounded by concrete.

March 12, 2025 - Reasons to Be Cheerful

Close-up of thin trunks of young trees in pots ready to be planted.

Forest Service Rescinds Tree Planting Grants

The $75 million program fell victim to the federal government’s purge of ‘DEI’-related projects.

March 5, 2025 - Fast Company

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.

Senior Planner

City of Thousand Oaks

Community Development Director

City of Wisconsin Rapids

Professor of Urban Planning

Harvard University Graduate School of Design

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