http://www.nwherald.com/2016/03/18/mchenry-county-landscapers-go-green-with-propane/airrfym/
http://archive.is/LKbZ8
McHENRY – For roughly the past 20 years, business operated as usual for Phil Hagen and his landscaping company McHenry Garden Center.
Like many in the industry, the McHenry-based contractor relied on gas-powered mowers to cut and manicure clients' lawns as prices consistently rose at the pump and societal awareness of the environment evolved.
But the tried-and-true methods at McHenry Garden Center all started to change last fall when Hagen began a conversion to alternative propane mowers after finding work in the North Shore city of Lake Forest and learning about its pollution and noise regulations for the first time.
"We wanted to do it the right way," Hagen said. "Propane is going to be the way of the future. In other countries, they've been running propane in cars and trucks for years. We are behind the times."