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.

1 minute read

January 11, 2024, 6:00 AM PST

By Diana Ionescu @aworkoffiction


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

IndustryAndTravel / Adobe Stock

Writing in Yahoo News, Willy Appelman describes how New York City is using data collection and advanced technology to monitor its tree canopy and assess when and where new trees should be planted to supplement the city’s urban forest.

A project called Tree Folio NYC uses lidar data to “measure the size and volume of individual canopies, making it easier to see where healthy trees are located and where existing canopies are lacking,” according to Cornell University researcher Alexander Kobald.

The tool could help the city keep a closer eye on its trees, which have a lifespan almost ten times as short as a similar tree in a rural environment due to exposure to pollutants like dog urine and salt from street treatments.

Appelman notes that “New York City recently passed measures aiming for 30% tree canopy cover by 2035, intending to plant up to 250,000 new trees.”

Saturday, January 6, 2024 in Yahoo News

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘Complete Streets’ Webpage Deleted in Federal Purge

Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

February 27, 2025 - Streetsblog USA

Green electric Volkswagen van against a beach backdrop.

The VW Bus is Back — Now as an Electric Minivan

Volkswagen’s ID. Buzz reimagines its iconic Bus as a fully electric minivan, blending retro design with modern technology, a 231-mile range, and practical versatility to offer a stylish yet functional EV for the future.

March 3, 2025 - ABC 7 Eyewitness News

View of mountains with large shrubs in foreground in Altadena, California.

Healing Through Parks: Altadena’s Path to Recovery After the Eaton Fire

In the wake of the Eaton Fire, Altadena is uniting to restore Loma Alta Park, creating a renewed space for recreation, community gathering, and resilience.

6 hours ago - Pasadena NOw

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9 - Axios

Close-up of row of electric cars plugged into chargers at outdoor station.

Electric Vehicles for All? Study Finds Disparities in Access and Incentives

A new UCLA study finds that while California has made progress in electric vehicle adoption, disadvantaged communities remain underserved in EV incentives, ownership, and charging access, requiring targeted policy changes to advance equity.

March 9 - UCLA Luskin Center for Innovation