Early this year, air quality officials in California reported that leaf blowers and other gas-powered lawn equipment would soon be producing more ozone pollution and other smog-producing contaminants than all cars in the country's most populous state combined. That was a sign both of how clean modern cars were becoming, and how dirty the antiquated technology of two-stroke gas-powered engines remains.
This week KCET, the public broadcasting station in Los Angeles, has a followup report on the surprisingly consequential pollution, climate-related, and public health consequences of this equipment. You can see the trailer for their report below, and find out more here. The full report will air through the week of November 13, 2017.