A boy slides down a giant replica sculpture of Beijing's Forbidden City at the Snow and Ice Sculpture Festival on Sun Island Park, Harbin, Heilongjiang Province, Northeast China, China, Asia

Malayan Sun Bear (Aelarctos malayanus), vulnerable, rapidly declining, down 30 percent due to deforestation, hunting and use in traditional Chinese medicine, France, Europe

Malayan Sun Bear (Aelarctos malayanus), vulnerable, rapidly declining, down 30 percent due to deforestation, hunting and use in traditional Chinese medicine, France, Europe

The sun goes down in the NamibRand Nature Reserve, Namib Desert, Namibia, Africa

Steps leading down to Greek Orthodox chapel of Eftamartyres at dawn, Kastro, Sifnos, Cyclades, Aegean Sea, Greek Islands, Greece, Europe

Sun going down behind surf spray at this resort near Mal Pais, southern Nicoya Peninsula, Santa Teresa, Puntarenas, Costa Rica, Central America

Sun on a stone wall on Holwell Down near Hound Tor, Dartmoor National Park, Bovey Tracey, Devon, England, United Kingdom, Europe

Ballyroney, County Down, Ulster, Northern Ireland, United Kingdom, Europe

Walkway down to heather and sand dunes at dawn, Kampen, Sylt, Schleswig Holstein, Germany, Europe

Sun setting down at the sea on a wild natural beach, in Greece

Sun setting down at the sea on a wild natural beach, in Greece

The old defences at Brean Down Fort, Brean Down, with Bristol Channel and Steep Holm Island in far distance, at sunset, Somerset, England, United Kingdom, Europe

A hiker watching the sun go down west of Moran Point at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Electricity pylons near Burbage, Leicestershire, United Kingdom

Electricity pylon, England, United Kingdom

The Petronas Twin Towers in Kuala Lumpur, Malaysia

Sun's rays above The Olgas, Kata Tjuta, Red Centre, Northern Territory, Australia

Pigs at sunset at Sheepdrove Organic Farm, Lambourn, England, United Kingdom

Electricity pylon in Cirencester, Gloucestershire, United Kingdom

Electricity pylon, England, United Kingdom

Electricity pylon near Burbage, Leicestershire, United Kingdom

Electricity pylon, England, United Kingdom

Electricity pylon, England, United Kingdom

Electricity pylon in Cirencester, Gloucestershire, United Kingdom

Woman with sun-shielding umbrella coming down the steps which lead up to the Chiang Kai-Shek Memorial Hall, Taipei, Taiwan, Asia

Cathedral of Santa Maria Della Salute seen from across the Grand Canal, Venice, Italy

The Olgas, Kata Tjuta, at sunset, Red Centre, Northern Territory, Australia

Tree Silhouettes, Peak District

A cathedral in Cologne by the Rhine at sunset, Germany

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

The Muni Seva Ashram in Goraj, near Vadodara, India, is a tranquil haven of humanitarian care. The Ashram is hugely sustainable, next year it will be completely carbon neutral. Its first solar panels were installed in 1984, long before climate change was on anyones agenda. Their energy is provided from solar panels, and wood grown on the estate. Waste food and animal manure is turned inot biogas to run the estates cars and also used for cooking. Solar cookers are also used, and the air conditioning for the hospital is solar run. 70 % of the food used is grown on the estate. They provide an orphanage, schools for all ages, vocational training, care for the elderly, a specialist cancer hospital withstate of the art machinary, and even have a solar crematorium. This shot shows solar panels that focus the suns rays on heat exchangers to boil oil, which is then sent down to the kitchens below to heat the cookers.

A snorkeler dives down with a whaleshark, Rhincodon typus, under a fishing platform, these sharks are friends with the fishermen who hand feed them at Cendrawasih Bay, West Papua, Indonesia, Pacific Ocean

Aerial view looking down onto commercial solar panels at sunrise in the English countryside

Sunset Nugget Point Lighthouse New Zealand

Bryce Canyon National Park UT

Rock climber rapelling down from an overhang of the summit of Kampenwand, view towards Tyrol, Chiemgau, Upper Bavaria, Bavaria, Germany

Young couple looking down at the marina, Portofino, Liguria, Italian Riviera, Italy, Europe

Ellmau castle in winter at sunset, burned down August 2005-rebuilding in 2007, Werdenfelser Land, Upper Bavaria, Bavaria, Germany

Female Skier skiing down a slope, Mountain landscape, Seiser Alm, Langkofel mountain range, South Tyrol, Italy

Baobab Alley, Grandidier's Baobab (Adansonia grandidieri), during magic hour, Morondava, Madagascar, Africa

Baobab or Monkey-bread Tree (Adansonia digitata), Tarangire National Park, Tanzania, Africa

Buddhist religious cult in the archaeological site of Angkor Thom, Cambodia, Southeast Asia, Asia

Two Rabari men going down a dune at sunset, silhouettes, Great Rann of Kutch, Gujarat, India, Asia

Aerial photo, outdoor pool, Suedpol outdoors swimming pool, Herne, Ruhr area, North Rhine-Westphalia, Germany, Europe

Grandidier's Baobab (Adansonia grandidieri), silhouette of trees at dawn, Morondava, Madagascar, Africa

Baobabs (Adansonia grandidieri) at sunset, Morondava, Madagascar, Africa

Baobab Alley, Grandidier's Baobab (Adansonia grandidieri), shortly before sunrise, silhouette of trees at dawn, Morondava, Madagascar, Africa

Woman sitting down by the sandy beach, Puglia, Italy, Europe

Tourists watching the sun go down over the Adriatic Ocean

Grandidier's Baobab (Adansonia grandidieri), silhouette of trees at dawn, Morondava, Madagascar, Africa

Expired pier on the shores of Lake Ueberlingen, Bodenseekreis district, Baden-Wuerttemberg, Germany, Europe

Baobab Alley, Baobab trees (Adansonia digitata) at sunset, near Morondava in the west of Madagascar, Africa, Indian Ocean

Avenue of Baobab (Adansonia digitata) trees at sunset, near Morondava in western Madagascar, Africa, Indian Ocean

Fulton Ferry State Park on the East River, the Brooklyn Bridge and Downtown Manhattan at the back, Dumbo, Down Under the Manhattan Bridge Overpass, New York, United States, North America

652 steps leading down to the stalactite cave Grotta di Nettuno, Neptune's Grotto, Sardinia, Italy, Europe

Down town, half-timbered houses, Linz am Rhein, Rhineland, Rhineland-Palatinate, Germany, Europe

View down to the historic town centre of Meersburg with the historical castle, Lake Constance district, Baden-Wuerttemberg, Germany, Europe

View down to the historic town centre of Meersburg with the historical castle, Lake Constance district, Baden-Wuerttemberg, Germany, Europe

Ruins of Hohentwiel Fortress in a foggy atmosphere, Hegau, Konstanz district, Baden-Wuerttemberg, Germany, Europe

View down to the historic town centre of Meersburg with the historical castle, Lake Constance district, Baden-Wuerttemberg, Germany, Europe

Ile Aux Cerfs, Mauritius. Aerial view of beautiful coastline.

Susann Scheller standing on top of Lion's Head looking down at the city of Cape Town. South Africa.

High Mountain Rangers Tom Ditola and David Weber are taking a rest on the West Rib on Mount McKinley, Alaska. Mount Hunter in the background. They are above the clouds in blue sky and the sun is shining. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

The Muni Seva Ashram in Goraj, near Vadodara, India, is a tranquil haven of humanitarian care. The Ashram is hugely sustainable, next year it will be completely carbon neutral. Its first solar panels were installed in 1984, long before climate change was on anyones agenda. Their energy is provided from solar panels, and wood grown on the estate. Waste food and animal manure is turned inot biogas to run the estates cars and also used for cooking. Solar cookers are also used, and the air conditioning for the hospital is solar run. 70 % of the food used is grown on the estate. They provide an orphanage, schools for all ages, vocational training, care for the elderly, a specialist cancer hospital withstate of the art machinary, and even have a solar crematorium. This shot shows solar panels that focus the suns rays on heat exchangers to boil oil, which is then sent down to the kitchens below to heat the cookers.

A woman snowshoeing down a steep snowslope on Molas Pass, San Juan National Forest, Silverton, Colorado.

Man snowboards down gentle slope in late afternoon.

Bike riding down a Vermont road.

A young woman catches a quick mountain bike ride before the sun goes down in Lake Tahoe, Nevada.

Katrin Schneider and Susann Scheller standing on top of Lion's Head looking down at Camps Bay and the city of Cape Town. South Africa.

Man telemark skis down hill in Canada backcountry near Alaska Canada border

The morning sun shines on a long wooden staircase that leads down to Bandon Bay on the Oregon Coast.

The skyline of the capital city of Doha and Business District at nightfall, Doha, Qatar

Wat Arun Ratchawararam Ratchawaramahawihan with Yaksha Guardian Statues at the entrance to Ordination Hall, illuminated at dusk, Bangkok, Bangkok Yai District, Thailand

A couple walking on the beach below the North Head Lighthouse at Cape Disappointment State Park near the mouth of the Columbia River, Washington State, Washington, United States of America

The Erechtheion (or Temple of Athena Polias) with sunburst on the Acropolis of Athens, the ancient citadel located on a rocky outcrop overlooking the City of Athens at twilight, Athens, Greece

Stunning aerial view from an airplane, showing part of the wing and turbine engine, above the puffy clouds with a pastel sky at twilight, flight from Terrace to Vancouver, British Columbia, Canada

Small yacht sailing past Eigg Island in the Scottish Inner Hebrides, Scotland

The Erechtheion (or Temple of Athena Polias) with sunburst on the Acropolis of Athens, the ancient citadel located on a rocky outcrop overlooking the City of Athens at twilight, Athens, Greece

Close-up view of the columns of The Parthenon against a blue, cloudy sky with a sunburst at twilight on the Acropolis of Athens, an ancient citadel located on a rocky outcrop above the City of Athens, Athens, Greece

Portrait of a sunlit, wolf (Canis lupus) standing in the brush in the snow, Churchill, Manitoba, Canada

View of the Mediterranean Sea along the coastal highway, Galleria Panoramica Capo d 'Aquila, Villanova Monteleone, Province of Sassari, Sardinia, Italy

Silhouette of two, blue wildebeest (Connochaetes taurinus) crossing horizon at sunset, Serengeti National Park, Tanzania, Africa

Scenic view of the coastal landscape with the Lighthouse at Faro Di Punta Spadillo in the National Park of Pantelleria Island at twilight, Pantelleria Island, Trapani, Sicily, Italy

Portrait of a Polar bear (Ursus maritimus) lying in the snow looking out from behind a snowbank, Churchill, Manitoba, Canada

The Pan American Highway is an empty, lonely, desolate road as it runs along Peru's Pacific Desert Coast along the ocean for hundreds of miles, Near Chala, Peru

A Cat Lays In The Sun On A Rock At The Ruins Of Saint John's Basilica And The Tomb Of Saint John, Ephesus, Izmir, Turkey

A Young Woman In A Bikini Lays On A Piece Of Driftwood On The Beach Holding A Sunhat Up To Shield The Sun, Tarifa, Cadiz, Andalusia, Spain

Two women riding horses (Equus ferus caballus) traveling through the grass near a hill at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

Portrait of male sable antelope (Hippotragus niger) standing in profile at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

View taken from behind of two women riding horses (Equus ferus caballus) traveling past acacia tree through the bush towards the hills at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

Two women riding horses (Equus ferus caballus) traveling past acacia tree through the bush at the Gabus Game Ranch with mountains in the background at sunset; Otavi, Otjozondjupa, Namibia

Felucca traveling on the River Nile with the tombs of nobles and Qubbet el-Hawa in the background on the western bank of the river while a bird flies by, Aswan, Egypt, Africa

Reticulated giraffe (Giraffa reticulata) crossing an earth dam on the horizon against a blue sky, Laikipia, Kenya

Reticulated giraffe (Giraffa reticulata) stands on the savannah browsing an acacia tree near Mount Kenya, Laikipia, Kenya

Hiking trail through Snow Canyon, with circles of stones in a meeting area behind the Red Mountain Spa, with meditation maze and Snow Canyon Mountain Range in the background. Red Cliffs Desert Reserve around St George Town with rock cliffs and dark clouds in a blue sky, St George, Utah, United States of America

Hiking trail through Snow Canyon, with circles of stones in a meeting area behind the Red Mountain Spa, with meditation maze and Snow Canyon Mountain Range in the background. Red Cliffs Desert Reserve around St George Town with rock cliffs and dark clouds in a blue sky, St George, Utah, United States of America

Hiking trail through Snow Canyon, with circles of stones in a meeting area behind the Red Mountain Spa, with meditation maze and Snow Canyon Mountain Range in the background. Red Cliffs Desert Reserve around St George Town with bright sunburst in a blue sky, St George, Utah, United States of America

View taken from behind of a woman standing in the foamy surf on the beach, looking out at the turquoise water with boats moored off shore along the horizon in Cane Garden Bay at twilight, Tortola, British Virgin Islands, Caribbean