Barragem do Alqueva, Rio Guadiana river, Alqueva dam hydroelectric power, Moura, Portugal, Europe

Flood control Monument, Harbin, Heilongjiang, China, Asia

Flood control Monument, Harbin, Heilongjiang, China, Asia

Flood control Monument, Harbin, Heilongjiang, China, Asia

Pumping station to supply agricultural irrigation channels, Bank of the Nile River near Esna, Egypt, North Africa, Africa

The Thames barrier on the River Thames in London. It was constructed to protect the capital city from storm surge flooding. Recent predictions show it will probably be redundant in around twenty years due to increased stormy weather and sea level rise driven by climate change.

The Thames barrier on the River Thames in London. It was constructed to protect the capital city from storm surge flooding. Recent predictions show it will probably be redundant in around twenty years due to increased stormy weather and sea level rise driven by climate change.

The Thames barrier on the River Thames in London. It was constructed to protect the capital city from storm surge flooding. Recent predictions show it will probably be redundant in around twenty years due to increased stormy weather and sea level rise driven by climate change.

Closed storm surge barrier The Oosterscheldekering (Eastern Scheldt storm surge barrier) between the islands Schouwen-Duiveland and Noord-Beveland, part of the Delta works series of dams, protecting the Netherlands from flooding, Netherlands

Cologne Cathedral covered by a flood, photomontage, symbolic image, Cologne, North Rhine-Westphalia, Germany, Europe

Running sheep on a dike, East Frisia, Lower Saxony, Germany, Europe

Domestic sheep (Ovis gmelini aries), lamb grazing on dyke, animal child, Schleswig-Holstein, Germany, Europe

Sheep at the dike in Utlandshoern (Leybucht), city Norden, East Frisia, Lower Saxony, Germany, Europe

Concrete dam of Urfttalsperre reservoir, Eifel National Park, district of Euskirchen, North Rhine-Westphalia, Germany, Europe

Closed storm surge barrier The Maeslantkering in the Nieuwe Waterweg waterway between Hoek van Holland and Maassluis, part of the Delta Works, Netherlands

Flood Control Memorial, Harbin, Heilongjiang province, China, Asia

Flood Control Memorial, Harbin, Heilongjiang province, China, Asia

Closed storm surge barrier The Maeslantkering in the Nieuwe Waterweg waterway between Hoek van Holland and Maassluis, part of the Delta Works, Netherlands

Flood Control Memorial, Harbin, Heilongjiang province, China, Asia

Flood Control Memorial, Harbin, Heilongjiang province, China, Asia

Flood Control Monument, Harbin, Heilongjiang, China, Asia

Aerial photo, Emscher and Henrichenburg flood control, Castrop Rauxel, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Norwegian sheep on the dike, Falshoeft, Geltinger Bay, Schleswig-Holstein, Germany, Europe

Flood Control Monument, Harbin, Heilongjiang, China, Asia

Boulevard and flood control area, Rio Rimac, Chaclacayo, Peru, South America

The Faller-Klamm Bridge. Frozen Sylvenstein Reservoir near Bad Toelz in the Isar valley of Karwendel Mountain Range during winter. Germany, Bavaria, Bad Toelz

Reservoir Lake Sylvenstein near Bad Toelz in the Karwendel mountains. The river Isar is the main tributary. Germany, Bavaria, Upper Bavaria

The Faller-Klamm Bridge. Frozen Sylvenstein Reservoir near Bad Toelz in the Isar valley of Karwendel Mountain Range during winter. Germany, Bavaria, Bad Toelz

Reservoir Lake Sylvenstein near Bad Toelz in the Karwendel mountains. The river Isar is the main tributary. Germany, Bavaria, Upper Bavaria