US concern about air pollution: 40%
In 1990, 58% of Americans said they had a great deal of concern about air pollution; today that number has fallen to only 40%.
Where this was said
The Invisible Killer: Introducing Particulate Matter and Air Pollution
At 6:40 · chapter starts 2:40
With a series of imagined radio announcements — 'the level of particulate matter in the air today is above WHO guidelines' or 'the Supreme Court will delay oral arguments due to high particulate matter in D.C.' — Dubner makes his central thesis visceral: air quality should be as routine a data point as weather or traffic. He introduces particulate matter (PM2.5), tiny particles less than 2.5 micrometers in diameter, invisible to the naked eye, and emitted by everything from dust to fossil fuel combustion. Environmental economist Andrea Linos of Deakin University explains why economists are interested: if pollution impairs cognition and cognition drives productivity, then the true economic costs of dirty air may be far larger than anyone has measured. The stage is set for a detailed scientific investigation into pollution's effects on the human brain.
99% of people breathe polluted air
The World Health Organization estimates that 99% of people around the world sometimes breathe air that exceeds WHO pollution guidelines.
Air Pollution Kills More Than Wars, Smoking, and Car Crashes Combined
Air pollution kills roughly 7 million people a year — more than double global COVID deaths in 2020, and more than 5 times annual car-crash fatalities. Economist Michael Greenstone says it's worse than cigarette smoking, wars, and auto accidents combined.
Similar snapshots
Only 42% of young men feel understood
Only 42% of young men think women understand their problems, and only 25% of young women say the same about men — a mutual comprehension deficit that previous generations largely closed as they aged.
Parents never mentioned marriage or parenthood
In focus groups across Philadelphia and Raleigh, every hand went up when asked if parents discussed financial stability and education, but no hands went up for marriage or parenthood.
1 in 5 children now only children
The share of American families with only children has risen dramatically, meaning more young people grow up without the negotiation, compromise, and friction that siblings naturally impose.
Young liberal women harassed most online
Young liberal women report experiencing sexual harassment online more frequently than conservative or moderate women, partly due to higher political posting activity drawing hostile responses.
Gen Z feminist identity gap: 15 points
Among Gen Z, a majority of women identify as feminist while only about 40% of men do — a 15-point gap that barely existed among Boomers, Gen X, or Millennials.
Third-space attendance dropped ~20 points post-COVID
A study conducted before and after the pandemic found that the share of Americans with a regular third space — a community gathering spot outside home and work — fell roughly 20 percentage points and has not recovered.
Majority under-50 feel parents saw them as special
Survey data shows a massive generational divide: most over-50s believe their parents viewed them as average, while a majority under-50 say their parents viewed them as special.
Women far less likely to condemn female cheating
When asked whether a woman cheating is morally wrong, young women were far less likely to take a hardline stance than older women or men, suggesting a shared-fate or experiential factor is shaping the judgment.
Men with more friends more likely to date
Survey data shows that men with more close friends are significantly more likely to have recently gone on a date or be in a committed relationship, highlighting the link between social integration and romantic success.
