Future climate change may cause either an increase or a
decrease in background tropospheric
ozone, due to the competing effects of higher water vapour and higher stratospheric input; increases in regional
ozone pollution are expected due to higher temperatures and weaker circulation.
Since a large body of evidence links
pollution with poor health, and health is an important part of human capital, efforts to reduce
pollution could plausibly be viewed as an investment in human capital and thus a tool for promoting economic growth... We find robust evidence that
ozone levels well below federal air quality standards have a significant impact on productivity: a 10 ppb
decrease in
ozone concentrations increases worker productivity by 4.2 percent.