Sign protected area (Zone de Reserva), Cies Islands, Atlantic Islands Galicia Maritime Terrestrial National Park, Galicia, Spain, Europe

Wild planting, Grey to Green initiative, with Royal Exchange Buildings and Castle house behind, Castle Gate Quarter, Sheffield, Yorkshire, England

Aerial view taken by drone of Skyggnisvtn lake in Landmannalaugar area, during a summer day, Iceland, Polar Regions

View from Paritutu Rock of the coast line of New Plymouth, Taranaki Region, North Island, New Zealand, Pacific

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Southern elephant seal (Mirounga leonina) pup, called weaners once their mothers stop nursing them, South Georgia Island, Southern Ocean

Burned forest area taken over by young Aspen trees in fall colors east of Greenland Lake, Grand Canyon North Rim, Arizona, United States of America

View of city buildings and Sakuradabori Moat of the Imperial Palace, Chiyoda, Tokyo, Honshu, Japan

Drone aerial view of Kriaritsi project area with abandoned roads in the south of Greece, Sithonia, Chalkidiki, Greece

Alqaleebah Gate's sign of Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Black-browed albatross (Thalassarche melanophrys) breeding colony on Steeple Jason Island in the Falkland Islands

Taiziwan Park by the West Lake, UNESCO, Hangzhou, Zhejiang Province, China

Black Spiny-tailed iguana (Ctenosaura similis), on New River near Lamanai, Belize

Aerial of the rocky mountains around Zouar, Tibesti Mountains, Chad

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

Reflections in the Sangha River, Dzanga Sangha National Park, UNESCO, Central African Republic

View of the Polychrome Mountains from lookout point on the park road inside Denali National Park and Preserve, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing within the town limits of Longyearbyen, Svalbard, Norway

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Drone aerial view of Kriaritsi project area with abandoned roads in the south of Greece, Sithonia, Chalkidiki, Greece

Palm plantation colonized by invasive Sodom apple plant (Calotropis procera), Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Nurse shark (Ginglymostoma cirratum), on the sand in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A pair of Mesoamerican sliders (Trachemys venusta), on New River near Lamanai, Belize

Adult brown bears (Ursus arctos) feeding on humpback whale carcass, Scidmore Cut, Glacier Bay National Park, Alaska, United States of America

White Oak and Buffalo Bayou Rivers confluence, Downtown Houston, Texas, United States of America

Female mantled howler monkey (Alouatta palliata) eating tree leaves in a north Pacific coast forest, Esperanza, Nosara, Guanacaste, Costa Rica

The boundary fence on the east side of Petrified Forest National Park, Arizona, United States of America

Feral goats, Inishmore, largest of the Aran Islands, Galway Bay, County Galway, Connacht, Republic of Ireland

Traditional barn-fortress for crop harvesting, Tallate, Anti-Atlas, Morocco

Riders on mountain bike with electric assistance, Ounila River valley, Ouarzazate Province, region of Draa-Tafilalet, Morocco

Corn and rice fields in the area around Nong Khiaw, Luang Prabang Province, Laos

View of shops and traffic on busy shopping street, Osaka, Honshu, Japan

Spain. Wind turbines and houses with solar panels in rural areas in andalucia

Spain. Wind turbines in rural areas in andalucia

Spain. Wind turbines in rural areas in andalucia

Spain. Wind turbines in rural areas in andalucia

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Person with a safety suit in a forest area. Ayegui, Navarre, Spain, Europe

Person with a safety suit lying down in a flowers carpet in a forest area. Ayegui, Navarre, Spain, Europe

French angelfish, Pomacanthus paru, Ilha rata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Person with a safety suit in a forest area. Ayegui, Navarre, Spain, Europe

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Palms and old pier in Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Bucket-wheel excavator, lignite mining, Garzweiler, near Jüchen, Erkelenz, North Rhine-Westphalia, Germany, Europe

Bucket-wheel excavators, Garzweiler lignite mining, near Jüchen, Erkelenz, North Rhine-Westphalia, Germany, Europe

Westfalen coal-fired power plant of RWE Power in the sunrise, Hamm, Ruhr district, North Rhine-Westphalia, Germany, Europe

Aerial view, Westfalen RWE power plant, RWE Power coal-fired power station, next to the former THTR nuclear power plant, Hamm, Ruhr district, North Rhine-Westphalia, Germany, Europe

Coking plant, steel plant by the Rhine, furnaces Schwelgern 1 and 2, cooling tower of coal power plant Duisburg Walsum behind, ThyssenKrupp Steel Europe, Hamborn, Duisburg, North Rhine-Westphalia, Germany, Europe

Kraftwerk Voerde coal power plant on the Rhine, emissions, smoke, smokestacks, cooling tower, Voerde, Ruhr district, North Rhine-Westphalia, Germany, Europe

Kraftwerk Voerde coal power plant on the Rhine, emissions, smoke, smokestacks, cooling tower, Voerde, Ruhr district, North Rhine-Westphalia, Germany, Europe

Coal plant Kraftwerk Duisburg-Walsum in front of the Rhine, backlit, cloud of smoke, emissions, Ruhr district, Duisburg, North Rhine-Westphalia, Germany, Europe

STEAG Evonik Walsum coal-fired power plant, Duisburg, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Uprooted trees have damaged a house, storm damage from 9 June 2014, Mülheim an der Ruhr, Ruhr Area, North Rhine-Westphalia, Germany, Europe

A3 Autobahn (motorway) near Oberhausen-Holten at sunset, OXEA Ruhrchemie chemical plant in background, Oberhausen, North Rhine-Westphalia, Germany, Europe

Emschermündung, River Emscher and Rhine, coal power plant, Dinslaken, Ruhr district, North Rhine-Westphalia, Germany, Europe

Coal power plant Scholven, E.ON Kraftwerke, cooling towers, chimneys, smoke, Gelsenkirchen, Ruhr district, North Rhine-Westphalia, Germany, Europe

Coal power plant Scholven, E.ON Kraftwerke, cooling towers, chimneys, smoke, Gelsenkirchen, Ruhr district, North Rhine-Westphalia, Germany, Europe

Faded asparagus field in autumn, in the back the E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

Aerial view, Kraftwerk Westfalen power plant, RWE Power, coal power plant, former nuclear power plant THTR Hamm-Uentrop, Welver, Ruhr district, North Rhine-Westphalia, Germany, Europe

People walking across Hoheward waste dump, in front of chimneys of the AGR incinerating plant, Herten, North Rhine-Westphalia, Germany, Europe

Forest damage in the coniferous forest on Mt. Grosser Arber, Naturpark Bayerischer Wald nature park, Bavaria, Germany, Europe

E.ON Scholven Power Station, Gelsenkirchen, Ruhr district, North Rhine-Westphalia, Germany, Europe

Aerial view, coal power plants on the Rhine, Lower Rhine, floodplains, Rhine bend at Beeckerwerth, Duisburg, Ruhr district, North Rhine-Westphalia, Germany, Europe

Sunset on the mountain Großer Rachel in winter, spruces covered with snow and spruces dead by bark beetle infestation, Bavarian Forest National Park, Bavaria, Germany, Europe

Herd of African Bush Elephants (Loxodonta africana), Amboseli National Park, Rift Valley Province, Kenya, Africa

Aerial view, wind turbines on Rosskopf mountain, Freiburg im Breisgau, Baden-Wuerttemberg, Germany, Europe

Peat harvest, Tullamore, County Offaly, Leinster province, Republic of Ireland, Europe

Aerial view, low clouds, Gersteinwerk of RWE Power, coal-fired power plant, temperature inversion, Bockum-Hövel, Hamm, Ruhr Area, North Rhine-Westphalia, Germany, Europe

E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

Faded asparagus field in autumn, in the back the E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

Roseate Spoonbill (Ajaia ajaja) in flight, Ding Darling National Wildlife Refuge, Sanibel Island, Florida, USA, North America

Charred, dead trees after a forest fire in Yellowstone National Park, Wyoming, USA

Faded asparagus field in autumn, in the back the E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), Lake Nakuru National Park, near Nakuru, Rift Valley Province, Kenya, Africa

E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

Peat harvest, Tullamore, County Offaly, Leinster province, Republic of Ireland, Europe

Combined cycle power plant, coal and natural gas, Gersteinwerk plant, RWE Power AG company, Werne-Stockum, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Combined cycle power plant, coal and natural gas, Gersteinwerk plant, RWE Power AG company, Werne-Stockum, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

E.ON coal power plant in Gelsenkirchen-Scholven, North Rhine-Westphalia, Germany, Europe

Dry Isar riverbed, Sylvenstein, Upper Bavaria, Germany, Europe

Wads of smoke from a forest fire pervading Sequoia National Park, California, USA

Industrial chimneys, exhausts, Germany, Europe

Industrial chimneys, exhausts, Germany, Europe

Sand Dune, Sossusvlei, Namib Desert, Namibia, Africa

Murlough National Nature Reserve, Dundrum Bay, County Down, Ireland