Years ago, Isaac Newton said, “What goes up, will come down." Arborists, other professional tree workers and amateurs all can go up to access tree canopies using aerial devices and ladders, but they may not come down the same way; it might be by a fall instead.So, what is happening out there for nonfatal injuries from accessing tree canopies by ladders, scissor-lifts and other mobile, aerial-lift devices? Are different incidents occurring to the homeowners versus tree workers? That is the focus of this article, one in a continuing series titled “Us versus Them,” where we contrast the operational incidents of homeowners and tree workers when they’re using common tools of the trade, such as chain saws, chippers and pole saws, and now lifts and ladders. (See sidebar about this series.)
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