Colombia's Carbon Neutral Christmas Wonderland

Medellín's spectacular holiday lights display draws thousands of tourists to Colombia's second-largest city every year. Few visitors are likely to realize that the energy intensive displays are carbon neutral.

1 minute read

December 25, 2013, 7:00 AM PST

By Jonathan Nettler @nettsj


Medellin Holiday Lights

Luz Adriana Villa / flickr

"Rated in 2012 among the world’s Top Ten Places To See Holiday Lights by National Geographic Traveler, Medellín’s display is truly impressive, with walking tunnels, enormous structures set on median strips, and light formations carpeting swathes of the city’s river, all based around a different theme every year and visited by thousands of city residents and tourists each day," writes Charles Parkinson. 

So how could a $9 million exhibition using 27 million light bulbs possibly be environmentally sensitive? 

"Since 2009, the event has been carbon neutral, with LEDs replacing incandescent lights, environmentally friendly materials used for the displays, and money plowed into reforestation projects large enough to offset not only the emissions produced as a result of the displays, but also by the influx of visitors and vendors’ vehicles and stalls," he explains. "Such initiatives are especially significant given that Medellín is considered one of the most polluted urban centers in Latin America."

Tuesday, December 17, 2013 in Next City

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

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

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.

April 16, 2025 - Diana Ionescu

Black and white photos of camp made up of small 'earthquake shacks' in Dolores Park in 1906 after the San Francisco earthquake.

The 120 Year Old Tiny Home Villages That Sheltered San Francisco’s Earthquake Refugees

More than a century ago, San Francisco mobilized to house thousands of residents displaced by the 1906 earthquake. Could their strategy offer a model for the present?

April 15, 2025 - Charles F. Bloszies

People walking up and down stairs in New York City subway station.

In Both Crashes and Crime, Public Transportation is Far Safer than Driving

Contrary to popular assumptions, public transportation has far lower crash and crime rates than automobile travel. For safer communities, improve and encourage transit travel.

April 18 - Scientific American

White public transit bus with bike on front bike rack in Nashville, Tennessee.

Report: Zoning Reforms Should Complement Nashville’s Ambitious Transit Plan

Without reform, restrictive zoning codes will limit the impact of the city’s planned transit expansion and could exclude some of the residents who depend on transit the most.

April 18 - Bloomberg CityLab

An engineer controlling a quality of water ,aerated activated sludge tank at a waste water treatment plant.

Judge Orders Release of Frozen IRA, IIJA Funding

The decision is a victory for environmental groups who charged that freezing funds for critical infrastructure and disaster response programs caused “real and irreparable harm” to communities.

April 18 - Smart Cities Dive