Eco-tourists by Padam Lake and Jogi Mahal hunting lodge in Ranthambhore National Park, Rajasthan, Northern India

Tour groups of eco-tourists in Maruti Suzuki Gypsy King 4x4 vehicle at waterhole in Ranthambhore National Park, Rajasthan, India

Eco-friendly cycle rickshaws, Zocalo, Plaza de la Constitucion, Mexico City, Mexico, North America

Eco friendly cycle rickshaw, Zocalo, Plaza de la Constitucion, Mexico City, Mexico, North America

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Agandi Eco Lodge (the huts), Bwindi Impenetrable Forest National Park, UNESCO World Heritage Site, Uganda, East Africa, Africa

Agandi Eco Lodge (the huts), Bwindi Impenetrable Forest National Park, UNESCO World Heritage Site, Uganda, East Africa, Africa

Makasutu Eco Lodge near Banjul, Gambia, West Africa, Africa

Tourist transport to the eco lodges in Tortuguero National Park, Costa Rica, Central America

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Makasutu Eco Lodge near Banjul, Gambia, West Africa, Africa

Fernwarme power plant, facade redesigned by eco-architect Friedensreich Hundertwasser, Spittelau, Vienna, Austria, Europe

Tourist transport to the eco lodges in Tortuguero National Park, Costa Rica, Central America

Eco Lodges on the canal at Tortuguero, Tortuguero National Park, Caribbean Coast, Costa Rica, Central America

Makasutu Eco Lodge near Banjul, Gambia, West Africa, Africa

Landscape look-out point, Hurulu Eco Park biosphere reserve, Habarana, Anuradhapura District, Sri Lanka, Asia

Eco Lodges on the canal at Tortuguero, Tortuguero National Park, Caribbean Coast, Costa Rica, Central America

Eco Paraiso Hotel, Celestun National Wildlife Refuge, Mexico, North America

Private eco reserve, Monteverde, Costa Rica, Central America

A farm based solar plant near wadebridge, Cornwall, UK,

Award winning eco hotel corridor, architects Geoffrey Bawa, Kandalama, Sri Lanka, Asia

Kandalama, award winning eco hotel in the landscape, architects Geoffrey Bawa, Sri Lanka, Asia

A greenhouse made from waste plastic drinks bottles in the community garden at Mount Pleasant Ecological Park, Porthtowan, Cornwall, UK.

The organic community garden at Mount Pleasant Ecological Park, Porthtowan, Cornwall, UK.

An ampitheatre built with used tyres at Mount Pleasant Ecological Park, Porthtowan, Cornwall, UK.

A greenhouse made from waste plastic drinks bottles in the community garden at Mount Pleasant Ecological Park, Porthtowan, Cornwall, UK.

The largest rammed earth building in the UK, a low impact building technique at Mount Pleasant Ecological Park, Porthtowan, Cornwall, UK.

Ahu Ahu Eco Beach Villa, Oakura, Taranaki, New Zealand, Pacific

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Turf roof on eco houses at the Centre for Alternative Technology in Machylleth, Wales, United Kingdom, Europe

Control switches in Krafla geothermal power station, Iceland, Polar Regions

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

Control switches in Krafla geothermal power station, Iceland, Polar Regions

An electrician working a control panel in Krafla geothermal power station, Iceland, Polar Regions

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

One of the steam turbines in the turbine hall of Krafla geothermal power station, Iceland, Polar Regions

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

A green travel initiative poster at Staveley Carnival, Lake District, Cumbria, England, United Kingdom, Europe

California gray whale (Eschrichtius robustus) calf being touched by excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

California gray whale (Eschrichtius robustus) calf being touched by excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

Adult California gray whale (Eschrichtius robustus) with excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

Young California Sea Lion (Zalophus californianus) hauled out on Zodiac near photographer at Los Islotes in the Gulf of California (Sea of Cortez), Mexico. Model released.

Adult California gray whale (Eschrichtius robustus) approaches excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico. No model releases.

California Gray Whale (Eschrichtius robustus) calf being touched byexcited whalewatcher in the calm waters of San Ignacio Lagoon, Baja, Mexico. (Restricted Resolution - pls contact us)

California gray whale (Eschrichtius robustus) calf being touched by excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

California gray whale (Eschrichtius robustus) calf being touched by excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

Adelie penguins (Pygoscelis adeliae) with ecotourism ship 'Polar Star' in background, Paulet Island, Antarctica, Southern Ocean

Polar bear (Ursus maritimus) and tourists aboard eco-tourism ship. Spitzbergen, Polar High Arctic, North Atlantic.

Cavity wall insulation at Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Adult California gray whale (Eschrichtius robustus) approaches excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

Two adult male Polar Bears (Ursus maritimus) swimming in open water in Hudson Bay to avoid the summer heat and insects near boat outside Churchill, Manitoba, Canada.

An charging point for electric cars at Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Part of the plant that removes water from the geothermal steam, before it is fed into the steam turbines at Krafla geothermal power station, Iceland, Polar Regions

An architect designed eco house with a wind turbine which will provide all the electricity needs of the house near Lesmahagow, Lanarkshire, Scotland, United Kingdom, Europe

California gray whale (Eschrichtius robustus) calf being touched by excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

California gray whale (Eschrichtius robustus) calf approaches excited whale watchers in the calm waters of San Ignacio Lagoon, Baja California Sur, Mexico.

Adult California Gray Whale (Eschrichtius robustus) with excited whalewatchers in the calm waters of San Ignacio Lagoon, Baja, Mexico.

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Hot water coming out of Krafla geothermal power station, Iceland, Polar Regions

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Fun visual effects of eco-tourists in a Zodiac in Kynoch Inlet in Misty Fjords National Monument in Southeast Alaska, USA. Pacific Ocean.

Newly built eco homes for sale in Giggleswick near Settle, Yorkshire, England, United Kingdom, Europe

Krafla geothermal power station near Myvatn, Iceland, Polar Regions

Kayaks at anchorage in Southeast Alaska. Property Released by owner Dan Blanchard, American Safari Cruises.

Hellisheidi geothermal power station in Hengill, Iceland, Polar Regions

Part of the plant that removes water from the geothermal steam, before it is fed into the steam turbines at Krafla geothermal power station, Iceland, Polar Regions

An architect designed eco house with a wind turbine which will provide all the electricity needs of the house near Lesmahagow, Lanarkshire, Scotland, United Kingdom, Europe

Sperm whale (Physeter macrocephalus) with eco-tourists on whale watch vessel MV Wheketere. Kaikoura, South Island, New Zealand.

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

A poster about the benefits of cycling, United Kingdom, Europe

Newly built eco homes for sale in Giggleswick near Settle, Yorkshire, England, United Kingdom, Europe

Eco certification of Whale watching trips in Reykjavik, Iceland, Polar Regions

Hot water coming out of Krafla geothermal power station, Iceland, Polar Regions

Hellisheidi geothermal power station in Hengill, Iceland, Polar Regions

A poster for SLACC, South Lakes Action on Climate Change group, Cumbria, England, United Kingdom, Europe

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, England, United Kingdom, Europe

Mexican aztec dress gods at Grand Palladium White Sand Resort and Spa in Riviera Maya, Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico. Aztec clothing was generally loose fitting and did not completely cover the body. When the Spanish arrived in Mexico, the people were surprised to see them in their full armour, with only their faces exposed. Aztec clothes were generally made of cotton (which was imported) or ayate fiber, made from the Maguey Cactus (also called the Century Plant or American Aloe). Women would weave the fibers into clothing, a task girls were taught as young teenagers. Because of their vast trading network, the Aztecs were able to make use of a beautiful array of dyes, creating the brilliant

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 views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

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.

Wind power plant, in Casares, Malaga, Spain

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.

Cenote Ik Kil in Yucatan, Mexico, a natural pit, or sinkhole near Chichen Itza. Yucatan Peninsula, Quintana Roo, Mexico. Ik Kil was sacred to the Mayans who used this cenote for both relaxation and ritual services centuries ago.

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

Aerial view of Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Kayakking in front of the beach of Grand Palladium White Sand Resort and Spa in Riviera Maya, Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Swimming at Cenote Ik Kil in Yucatan, Mexico, a natural pit, or sinkhole near Chichen Itza. Yucatan Peninsula, Quintana Roo, Mexico. Ik Kil was sacred to the Mayans who used this cenote for both relaxation and ritual services centuries ago.

Aerial view of Grand Palladium White Sand Resort and Spa in Riviera Maya, Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Aerial view of Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Estructura 8I-13 El Castillo at Chunyaxche Muyil Maya ruins, rainforest near Tulum, Yucatan Peninsula, Quintana Roo, Mexico

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.

Underwater close up view of open coral polyp during a dive, Cancun, Quintana Roo, Mexico

A Mexican staff member holds a tucan at Grand Palladium White Sand Resort and Spa in Riviera Maya, Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico