Scientists are studying night-time chemistry that could providecleaner air.
"During the night, ozone-forming nitrogen oxides undergo chemical reactions that transform them into nitric acid gas. This gas rapidly deposits on the surface, partially cleansing the air of key smogmaking ingredients. As Brown's colleague A.R. Ravishankara notes, this glimpse of a previously unknown process shows that "the nighttime chemistry is a new piece of the air-quality puzzle.... We need to find out more about when and where it is important." For example: Are there circumstances where it enhances smogmaking rather than moderating it? And what else is going on?"
Thanks to Chris Steins
FULL STORY: To cut daytime smog, attack it at night
Depopulation Patterns Get Weird
A recent ranking of “declining” cities heavily features some of the most expensive cities in the country — including New York City and a half-dozen in the San Francisco Bay Area.
California Exodus: Population Drops Below 39 Million
Never mind the 40 million that demographers predicted the Golden State would reach by 2018. The state's population dipped below 39 million to 38.965 million last July, according to Census data released in March, the lowest since 2015.
Pennsylvania Mall Conversion Bill Passes House
If passed, the bill would promote the adaptive reuse of defunct commercial buildings.
Google Maps Introduces New Transit, EV Features
It will now be easier to find electric car charging stations and transit options.
Ohio Lawmakers Propose Incentivizing Housing Production
A proposed bill would take a carrot approach to stimulating housing production through a grant program that would reward cities that implement pro-housing policies.
Chicago Awarded $2M Reconnecting Communities Grant
Community advocates say the city’s plan may not do enough to reverse the negative impacts of a major expressway.
City of Costa Mesa
Licking County
Barrett Planning Group LLC
HUD's Office of Policy Development and Research
Mpact Transit + Community
HUD's Office of Policy Development and Research
City of Universal City TX
ULI Northwest Arkansas
Town of Zionsville
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