Air pollution is so bad in Mexico City that residents have less sensitivity to smells, according to a recent study.
"Tests showed people in Mexico City -- a sprawling metropolis crammed with around 20 million people and 4 million cars -- struggled to sniff out everyday odors like coffee and orange juice compared to residents of a nearby town."
"Their noses are so badly damaged from a life inhaling toxic particles that they also find it harder to detect the scent of rotten food, said researcher Robyn Hudson who ran the study."
"Mexico City is one of the world's most polluted capitals, along with Beijing, blighted by its thin high-altitude air and a ring of surrounding mountains that trap exhaust fumes belched from smoky buses and factories on the city outskirts."
"Mexico City's ozone levels exceed World Health Organization standards on approximately 300 days of the year."
FULL STORY: Mexico City smog hurting people's sense of smell
Another EPA Rollback, Tailor-Made for Gov. Walker and Southeast Wisconsin
Politics and economics win over public health in Racine County as the EPA exempted the area around the Foxconn's massive facility from meeting stricter ozone pollution standards, saving the company from investing in smog-reducing equipment.
A 'Good News' Air Pollution Study for a Change
Too often we report on new studies showing how air pollution worsens public health, often causing premature death. For a change, here's a study showing how efforts to improve air quality in Southern California have boosted public health in children.
Decisive Supreme Court Win for Clean Air and Public Health
In a huge and perhaps unexpected win for the EPA, the Supreme Court on April 29 reversed an appellate court panel ruling that had rejected their attempt to regulate interstate air pollution caused by about 1,000 coal-fired power plants in 28 states.
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.
Has President Trump Met His Match?
Doug Ford, the no-nonsense premier of Canada's most populous province, Ontario, is taking on Trump where it hurts — making American energy more expensive.
Study: London ULEZ Rapidly Cleaning up Air Pollution
Expanding the city’s ultra low-emission zone has resulted in dramatic drops in particle emissions in inner and outer London.
San Jose Mayor Takes Dual Approach to Unsheltered Homeless Population
In a commentary published in The Mercury News, Mayor Matt Mahan describes a shelter and law enforcement approach to ending targeted homeless encampments within Northern California's largest city.
Atlanta Changes Beltline Rail Plan
City officials say they are committed to building rail connections, but are nixing a prior plan to extend the streetcar network.
Are Black Mayors Being Pushed Out of Office?
The mayors of New York, St. Louis, and Pittsburgh all stand to lose their seats in the coming weeks. They also all happen to be Black.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Resource Assistance for Rural Environments
City of Edmonds
City of Grandview
Harvard GSD Executive Education
UCLA Lewis Center for Regional Policy Studies
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research