During the preparation for an ice dive, a chainsaw is working its way through the ice. This picture is from the underside of the ice in a flooded limestone quarry in Karlstrup, Denmark.

Chainsaw sculpture by Glenn Greensides, Grouse Mountain, Vancouver, British Columbia, Canada, North America

Estonian forestry, cutter with chainsaw, Tartumaa, Estonia

A tree surgeon pruning a large oak tree

Man wearing harness climbing tree

Caucasian man cutting logs with chainsaw

Caucasian man cutting logs with chainsaw

Lumberjack secured by a rope felling a tree piece by piece with a chainsaw, Germany, Europe

Lumberjack secured by a rope felling a tree piece by piece with a chainsaw, Germany, Europe

A man sawing pieces of wood with a chainsaw

Lumberjack with chainsaw, Lessini mountain, Sega di Ala, Trentino Alto Adige, Italy, Europe

A young man cutting down a tree with a chain saw.

Firefighters remove a tree that is candling near the containment line of a grass fire, Pimpama, Queensland, Australia

Artist carving a wood sculpture with chainsaw, Edmonton, Alberta, Canada

Artist using chainsaw to cut wooden sculpture from a tree, Edmonton, Alberta, Canada

Artist carving a wood sculpture with chainsaw, Edmonton, Alberta, Canada

Man wearing safety gear using chainsaw to fell tree in a forest, Devon, United Kingdom

Rear view of man wearing safety gear walking through forest carrying chainsaw on his shoulder, Devon, United Kingdom

Man wearing safety gear using chainsaw to fell tree in a forest, Devon, United Kingdom

Four construction workers by a lake with tools

Tree pruning in autumn, cutting branches of a lime tree by a pruner with safety harness, country garden in Lorraine

Tree pruning in autumn, cutting branches of a lime tree by a pruner with safety harness, country garden in Lorraine