To suggest that we can measure carbon dioxide reservoirs or carbon dioxide flows with the accuracy required of these percentages, an accuracy required if we are to infer our efforts at carbon dioxide abatement are a success, is another sort of pollution: smoke and mirrors.

ECONOMIST: The benefits of CCS

They do know that certain things can trigger an attack, like air pollution, cigarette smoke, mold, pets, dustmites and cockroaches.

NPR: Calif. Program Helps Rid Triggers of Asthma

Only when I developed empathy for my local employees, thanks to numerous stomach conditions, nasty bed bug bites, and asthma from indoor air pollution (from cook-stove smoke), did I begin to make some progress at work.

FORBES: Empathy: The Best Antidote for Messiah Complex

Temperatures reached a record 39C (102F) in the capital on Thursday, with health experts warning of pollution levels 10 times higher than normal safety limits due to the thick pall of smoke from nearby wildfires.

BBC: Russia mobilises 240,000 to fight deadly wildfires