12-07-2016 Las Vegas, Nevada, drought at the Hoover Dam and Lake Mead. The white ring indicates the water level when the reservoir was full. Lake Mead has fallen 150 feet and is now at 37% of capacity due to dro... © Jim West

12-07-2016 Las Vegas, Nevada, drought at the Hoover Dam and Lake Mead. The white ring indicates the water level when the reservoir was full. Lake Mead has fallen 150 feet and is now at 37% of capacity due to dro... © Jim West

25-05-2016 Marysville, Michigan U.S. Coast Guard training for an oil spill, where two Enbridge Energy pipelines cross the St. Clair River between the USA and Canada © Jim West

25-05-2016 Marysville, Michigan U.S. Coast Guard training for an oil spill, where two Enbridge Energy pipelines cross the St. Clair River between the USA and Canada © Jim West

25-05-2016 Marysville, Michigan U.S. Coast Guard training for an oil spill, where two Enbridge Energy pipelines cross the St. Clair River between the USA and Canada © Jim West

25-05-2016 Marysville, Michigan U.S. Coast Guard training for an oil spill, where two Enbridge Energy pipelines cross the St. Clair River between the USA and Canada © Jim West

25-05-2016 Marysville, Michigan USA U.S. Coast Guard and other agencies in the U.S. and Canada training for the possibility of an oil spill where two Enbridge Energy pipelines cross the St. Clair River. © Jim West

06-12-2013 Police tape. Badly damaged cliff-top homes after Xavier, the largest tidal surge in 60 years battered the east coast of England. © Jess Hurd

06-12-2013 Repairing electrical lines after Xavier, the largest tidal surge in 60 years battered the east coast of England. © Jess Hurd

05-12-2013 Mearl Brown, lifeguard, windfarm worker and owner of a damaged beach property after storm surge Xaviar smashes the seafront Cromer, East Anglia. © Jess Hurd

21-04-2010 A coal miners shirt hangs by the road as a memorial to the 29 miners killed in the explosion at Massey Energys Upper Big Branch mine. © Jim West

08-10-2007 A collapsed crane, that killed a worker at the Milford Haven Liquid Natural Gas (LNG) Terminal, in Pembrokeshire. © Paul Box

08-10-2007 A collapsed crane, that killed a worker at the Milford Haven Liquid Natural Gas (LNG) Terminal, in Pembrokeshire. © Paul Box

11-10-2005 Workers simulate a nuclear accident EDF Nuclear Power Plant, France. Firefighters in protective NBC suites take samples to ditermine the extent of radioactive contamination. © Pierre GLEIZES

09-12-2004 Workers simulate a nuclear accident in the control room of the EDF Le Blayais Nuclear Power Plant, France © Antoine MARESCAUX

20-01-1994 Safety inspectors examining a flask of nuclear waste for leaks during transport by rail to or from BNFL Sellafield. There was apparently no leak. Rugby. ... © John Harris

20-01-1994 Flask of nuclear waste in a railway siding to be checked for leaks during transport by rail to or from BNFL Sellafield. There was apparently no leak. Rugby. ... © John Harris

20-01-1994 Safety inspectors after examining a flask of nuclear waste for leaks during transport by rail to or from BNFL Sellafield. There was apparently no leak. Rugby. ... © John Harris