Web-Tool Maps Real-Time Deforestation

A new web-based program, Global Forest Watch, provides access to almost real-time visualization of forests around the world.

1 minute read

March 22, 2014, 5:00 AM PDT

By Helen Brown


Jared Green reports on a web-based tool, Global Forest Watch that “aims to provide a “near-real time” view of deforestation (and reforestation) around the world.” The program, which is provided by World Resources Institute, allows unprecedented visualization of deforestation: “As Rebecca Moore, engineering manager with Google Earth, explained to Reuters: 'With the exception of Brazil, none of the tropical forest countries have been able to report the state of their forests. Now it will be possible to have near real-time updates of the state of the world’s forests, open to anyone to use.'”

The web tool “uses more than half a billion high-res images from NASA’s Landsat program, which are organized with new algorithms created by the University of Maryland, and then made available for easy online access thanks to the cloud computing power of Google’s Earth and Maps engines.” Users and watch groups can collect information as well as “submit data, pictures, and video on the ground.”

The benefits of this crowdsourcing ability is a “near real-time” monitoring of existing tree cover anywhere in the world. “BBC News writes that high-res images of global tree loss and gain are updated annually while data on tropical forests is updated monthly.”

Tuesday, March 18, 2014 in ASLA The Dirt

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

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 21, 2025 - Diana Ionescu

Rendering of California High-Speed Rail station with bullet train.

California High-Speed Rail's Plan to Right Itself

The railroad's new CEO thinks he can get the project back on track. The stars will need to align this summer.

May 19, 2025 - Benjamin Schneider

Two Rivian trucks charging at Rivian branded charging ports.

US Senate Reverses California EV Mandate

The state planned to phase out the sale of gas-powered cars by 2035, a goal some carmakers deemed impossible to meet.

May 22 - CALmatters

Metal U.S. Geodetic Survey marker in stone in Arizona.

Trump Cuts Decimate Mapping Agency

The National Geodetic Survey maintains and updates critical spatial reference systems used extensively in both the public and private sectors.

May 22 - Wired

Close-up of 10 mph speed limit sign.

Washington Passes First US ‘Shared Streets’ Law

Cities will be allowed to lower speed limits to 10 miles per hour and prioritize pedestrians on certain streets.

May 22 - The Urbanist