Mark Taylor / Car park flooded by River Wey, with cars almost completely submerged during Christmas 2013 flooding, Guildford. Surrey, England, UK. 25th December 2013.

Ross Hoddinott / Tree and road sign in the snow on icy, wintry roads in early morning light, nr Bradworthy, Devon, UK. December 2010

Franco Banfi / Black bear crossing warning sign, Juneau, Alaska, United States.

Alex Hyde / 50 mile an hour road sign submerged in huge snow drifts on country roads in the Peak District National Park, Deryshire, UK. March.

Pascal Tordeux / Road sign at the entrance to Beaufort, where Beaufort cheese is made. Haute Savoie, France, May 2014.

David Woodfall / Flood warning sign during January 2014 flooding, Somerset Levels, England, UK, 9th January 2014.

Mark Taylor / Car park flooded by River Wey, with cars almost completely submerged during Christmas 2013 flooding, Guildford. Surrey, England, UK. 25th December 2013.

David Woodfall / Road closed sign in flooded lane following February 2014 floods in Severn valley, Gloucestershire, England, UK, 7th February 2014.

Will Watson / River Severn floodwaters on road, Worcester, England, UK, 13th February 2014.

Ann & Steve Toon / Zebra crossing animal warning sign, Namib Desert, Namibia, April

Enrique Lopez-Tapia / Traffic sign warning of penguins crossing. Ushuaia, Tierra del Fuego, Argentina.

Roland Seitre / Road sign warning of shearwaters crossing, Mouli, Ouvea, Loyalty Islands Province, New Caledonia.