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This innovative solar energy system (AllSun Trackers) is in Middlebury,VT and will feed electricity into nearby power lines a...
This innovative solar energy system (AllSun Trackers) is in Middlebury,VT and will feed electricity into nearby power lines and the electrical grid.It is a product of student research at Middlebury Collegeês environmental studies program.





An off-road vehicle crosses a swamp on an old bridge in the Okavango Delta, in Botswana, the world's largest inland delta.





Polar bear (Ursus maritimus) footprints in the snow along a barrier island during Fall freeze up, Bernard Spit, off the 1002 ...
Polar bear (Ursus maritimus) footprints in the snow along a barrier island during Fall freeze up, Bernard Spit, off the 1002 area of the Arctic National Wildlife Refuge, Alaska.





England, London, Shoreditch. The Beacon, an innovative low-energy street lighting project that uses solar energy to power eff...
England, London, Shoreditch. The Beacon, an innovative low-energy street lighting project that uses solar energy to power efficient fluorescent tubes.





Glacier El Martial, Ushuaia, Fuegian Andes, Tierra del Fuego Archipelago, Straits of Magellan, Tierra del Fuego Province, Pat...
Glacier El Martial, Ushuaia, Fuegian Andes, Tierra del Fuego Archipelago, Straits of Magellan, Tierra del Fuego Province, Patagonia, Argentina.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





The Hellisheidi Power Station is the largest geothermal power station in the world. The plant produces 300 MW of electricity ...
The Hellisheidi Power Station is the largest geothermal power station in the world. The plant produces 300 MW of electricity and 400 MW of thermal energy. The Hellisheidi Power Plant produces 100% renewable energy.





This innovative solar energy system (AllSun Trackers) is in Middlebury,VT and will feed electricity into nearby power lines a...
This innovative solar energy system (AllSun Trackers) is in Middlebury,VT and will feed electricity into nearby power lines and the electrical grid.It is a product of student research at Middlebury Collegeês environmental studies program.





Environmental activists protest the state of the planet on Wall Street in New York in April 1990. (© Frances M. Roberts)





Wales, Flintshire, Shotton. View across the Dee estuary towards the Corus Steelworks at Shotton.





An elephant in the Okavango Delta of Botswana has been darted and outfitted with a electronic tracking collar. The collar hel...
An elephant in the Okavango Delta of Botswana has been darted and outfitted with a electronic tracking collar. The collar helps to protect against poaching and enables scientists to learn more about the migratory behavior of elephants. Elephants are the largest land animals now living.





Hundreds of environmental activists rally in Dag Hammarskjold Plaza in New York across from the United Nations for Moving Pla...
Hundreds of environmental activists rally in Dag Hammarskjold Plaza in New York across from the United Nations for Moving Planet day Moving Planet was organized as a worldwide day to move beyond the use of fossil fuels and to embrace alternative energy s. Hundreds of environmental activists rally in Dag Hammarskjold Plaza in New York across from the United Nations for Moving Planet day Moving Planet was organized as a worldwide day to move beyond the use of fossil fuels and to embrace alternat





Massive Tabular Iceberg in Neko Harbor. Neko Harbor located in Andvord Bay at the southern end of the scenic Errera Channel i...
Massive Tabular Iceberg in Neko Harbor. Neko Harbor located in Andvord Bay at the southern end of the scenic Errera Channel in Antarctica and surrounded by active glaciers.





View from the fourth Floor of office building in which skyline mimics computer screen and office equipment creates new buildi...
View from the fourth Floor of office building in which skyline mimics computer screen and office equipment creates new buildings. Dublin, Ireland





The Okavango Delta, in Botswana, is the world's largest inland delta. The area was once part of Lake Makgadikgadi, an ancient...
The Okavango Delta, in Botswana, is the world's largest inland delta. The area was once part of Lake Makgadikgadi, an ancient lake that mostly dried up by the early Holocene. The Okavango Delta is produced by seasonal flooding. The Okavango river drains the summer (January-February)





Thrifty shoppers at a free Stop 'N"" Swap event in the Fort Greene neighborhood of Brooklyn on Saturday, February 26, 2011.





England, Surrey, KIngston upon Thames. Cyclists riding in a cycle lane over Kingston Bridge.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





Hikers traverse the ash-blackened Vatnajokull Glacier. Black ash from volcanic eruptions darkens the ice at the Vatnajokull G...
Hikers traverse the ash-blackened Vatnajokull Glacier. Black ash from volcanic eruptions darkens the ice at the Vatnajokull Glacier. Vatnajokull is the largest glacier in Iceland. It is located in the south-east of the island, covering more than 8% of the country. Vatnajokull is the largest ice cap in Europe. The average thickness of the ice is 400 meters, with a maximum thickness of 1,000 meters.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.





The Milner coal fired power plant located in the foothills of the Rocky Mountains of Grand Cache, Alberta, Canada.





Massive Tabular Iceberg in Neko Harbor. Neko Harbor located in Andvord Bay at the southern end of the scenic Errera Channel i...
Massive Tabular Iceberg in Neko Harbor. Neko Harbor located in Andvord Bay at the southern end of the scenic Errera Channel in Antarctica and surrounded by active glaciers.





Oils and algae leaching into the ash covered ground at the base of the Eyjafjallajokull Volcano in Iceland one year after the...
Oils and algae leaching into the ash covered ground at the base of the Eyjafjallajokull Volcano in Iceland one year after the eruption. Lava broke through the Gigjokull Glacier causing violent eruptions and large amounts of ash that caused worldwide aviation nightmares shutting down almost all of Europe for days in 2010.





These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land...
These wind towers have a very small footprint, and even including the service roads take only a fraction of the farmer's land. Landowners are reimbursed for use of the land. Nine Canyon Wind Project, Richland, Washington.

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