While the news has been full of warnings about the rapidly deteriorating air quality of cities in the developing world, David Agren examines how one megacity has managed to drastically clean its polluted air over the past twenty years.
"With urbanization advancing, economies expanding, and climate change a concern, Mexico City has emerged as an unlikely environmental example for cities in developing countries suffering similar air quality issues," says Agren.
"Mexico City recorded only eight days with air quality considered 'good' in 1992. That compares with 248 'good' air days in 2012, reflecting the success of initiatives to relocate industry, kick clunkers off the capital's streets, encourage cleaner technologies, and expand public transit and cycling options."
Despite the marked improvements, levels of particulate matter pollution and sprawling development remain a concern for public officials. Guillermo Velasco Rodríguez, director of planning and projects for the Centro Mario Molina, "acknowledges the improvement in air pollution in Mexico City but cautions against prematurely celebrating."
"It sounds good if you compare it to 1992," he says, "but it's not [yet] what we want."
FULL STORY: Model for megacities? Mexico City cleans up its air.

Trump Administration Could Effectively End Housing Voucher Program
Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

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

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?
As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

Washington State’s Parking Reform Law Could Unlock ‘Countless’ Acres for New Housing
A law that limits how much parking cities can require for residential amd commercial developments could lead to a construction boom.

Wildlife Rebounds After the Eaton Fire
Following the devastation of the Eaton Fire, the return of wildlife and the regrowth of native plants are offering powerful signs of resilience and renewal.

LA to Replace Inglewood Light Rail Project With Bus Shuttles
LA Metro says the change is in response to community engagement and that the new design will be ready before the 2028 Olympic Games.
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