A SavATree climber in action. All photos and graphics courtesy of Sarah Cusack. Tree climbing is, by every physiological measure, an endurance sport. The average heart rate of an arborist working in the canopy hovers around 160 beats [...]

The best climbers in the world can’t carry out complex rigging plans without the actions of their ground-crew mates. All photos courtesy of the author. There are few aspects in tree work that require coordinated teamwork. Efficient climbers can perform [...]

Urban rigging is, essentially, tight-quarters rigging. While you can find this scenario anywhere trees need to be worked on in close proximity to structures, it is nearly the norm in urban environments, from the street trees that have found a [...]