Ashley Cooper / Nepalese woman crushing stone with a hammer, Himalayan foothills, Nepal. January 2013.

Ashley Cooper / A Nepalese woman crushing stone with a hammer, Himalayan foothills, Nepal. January 2013.

Ashley Cooper / Paving slabs which have been ripped up and tossed 30 feet across the street after severe storm, Aberystwyth, Wales, UK. January 2014

Ashley Cooper / Dried up river bed in the Anti Atlas mountains of Morocco, North Africa. April 2012. In recent years, rainfall totals have reduced by around 75% as a result of climate change.

Ashley Cooper / The Brockholes visitor centre at the Lancashire Wildlife Trust reserve in Preston, Lancashire, UK. The Brockholes reserve is a wetland habitat constructed from old gravel pit workings. The green visit...

Richard Du Toit / Gravel road, Tankwa Karoo National Park, Western Cape Province

Graham Eaton / Vertically dipping Cretaceous Chalk exposed at Swyre and Bat's Head, near Weymouth, Dorset UK. A post-glacial channel can be seen at the top of the nearer headland, as cream coloured sand and grav...

Graham Eaton / Glacial outwash sand and gravel deposited during glacial retreat, Baumaris, Anglesey, Wales, UK, June.

Graham Eaton / Glacial outwash sand and gravel deposits, Baumaris, Wales, UK, June. These deposits were laid down in a fluvial environment of braided streams near the front of a retreating glacier, during the last I...

Graham Eaton / Glacial Sand and Gravel deposited within a kettle hole, Baumaris, Anglesey, Wales, UK, June. Sediment is deposited around a block of ice left near the front of a melting or retreating glacier. When t...

Graham Eaton / Vertically dipping Cretaceous Chalk exposed at Bat's Head, near Weymouth, Dorset UK. Isolated from the headland is a small sea stack that once formed part of main cliff. A natural arch at the base...

Yva Momatiuk & John Eastcott / Tundra and gravel road, Tungnarfjoll Mountains and Fogrufjoll Mountains, Iceland