Jabruson / African rainforest clearance, men sawing hardwood tree trunks to make planks. South of Mbomo, Odzala-Kokoua National Park, Republic of Congo, May 2005.

Jabruson / African rainforest clearance - man with chainsaw cutting hardwood tree felled for timber. South of Mbomo, Odzala-Kokoua National Park, Republic of Congo, May 2005.

Jabruson / African Rainforest clearance - hardwood tree felled for timber exploitation. South of Mbomo, Odzala-Kokoua National Park, Republic of Congo.

Nick Turner / Hand selection of limestone for construction and dry stone walling, Huntsmans Quarry, Naunton, Gloucestershire, UK. July 2015.

Bryan and Cherry Alexander / A gas field worker wearing protective clothing with frosted breath at -30 Celsius in the South Tambey Gas Field, Yamal Peninsula, Siberia, Russia. February 2014.

Bryan and Cherry Alexander / Evgeniy Petrov, a safety officer for Yamal SPG, stands infront of a 'Christmas tree' (valve assembly) at a drilling site in the South Tambey Gas Field, Yamal Peninsula, Siberia, Russia. February 2014.

Bryan and Cherry Alexander / Man using head net as essential protection from mosquitoes and black flies during the summer in Siberia, August 2008. Model released

Bryan and Cherry Alexander / Worker using respirator against sulphur dioxide gas in the copper foundry in Norilsk. Western Siberia, Russia, 2000.

David Fleetham / Commercial diver's hard hat helmet and suface supply hoses, Oahu, Hawaii.

David Fleetham / Commercial hard hat diver's helmit with lights, Oahu, Hawaii.

David Fleetham / Commercial hard hat diver preparing for a dive, Oahu, Hawaii. Model released.