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    Four people seated at a table — Stock Photo
    Four people seated at a table
    Boy at Green Science Fair sign — Stock Photo
    Boy at Green Science Fair sign
    Bio fuel plant at bio gas station on a sunny day — Stock Photo
    Bio fuel plant at bio gas station on a sunny day
    From above modern yellow lawn mower driving and cutting green grass on sunny summer day in yard — Stock Photo
    From above modern yellow lawn mower driving and cutting green grass on sunny summer day in yard
    Low angle of cropped unrecognizable mature ethnic male inspector in vest with clipboard looking away while standing near solar power station — Stock Photo
    Low angle of cropped unrecognizable mature ethnic male inspector in vest with clipboard looking away while standing near solar power station
    Conveyor belts in recycling center — Stock Photo
    Conveyor belts in recycling center
    Wind turbine energy generators on wind farm — Stock Photo
    Wind turbine energy generators on wind farm
    Frozen pipeline valve installed on metal tube transferring liquid nitrogen at oil and gas processing factory — Stock Photo
    Frozen pipeline valve installed on metal tube transferring liquid nitrogen at oil and gas processing factory
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory — Stock Photo
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory
    Woman seated at a desk — Stock Photo
    Woman seated at a desk
    Bottles on conveyor belt in factory — Stock Photo
    Bottles on conveyor belt in factory
    Netherlands, factory smokestack and power windmill — Stock Photo
    Netherlands, factory smokestack and power windmill
    Engineers at truck at sunny wind turbine power plant — Stock Photo
    Engineers at truck at sunny wind turbine power plant
    View to windmill and calm blue ocean in The Palm, Spain. — Stock Photo
    View to windmill and calm blue ocean in The Palm, Spain.
    Bio fuel plant at bio gas station on a sunny day — Stock Photo
    Bio fuel plant at bio gas station on a sunny day
    Portrait confident, smiling engineers at power plant — Stock Photo
    Portrait confident, smiling engineers at power plant
    Bottles on conveyor belt in factory — Stock Photo
    Bottles on conveyor belt in factory
    Engineers with toolbox walking at sunny wind turbine power plant — Stock Photo
    Engineers with toolbox walking at sunny wind turbine power plant
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory — Stock Photo
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory
    Man seated checking his smart phone — Stock Photo
    Man seated checking his smart phone
    Electricity substation in the West Midlands, England. — Stock Photo
    Electricity substation in the West Midlands, England.
    Mid section of male worker using digital tablet at solar station — Stock Photo
    Mid section of male worker using digital tablet at solar station
    Engineers meeting at truck at sunny wind turbine power plant — Stock Photo
    Engineers meeting at truck at sunny wind turbine power plant
    Male worker examining a concrete tunnel at solar station — Stock Photo
    Male worker examining a concrete tunnel at solar station
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory — Stock Photo
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory
    Girl beside a large solar panel — Stock Photo
    Girl beside a large solar panel
    Woman sitting on chair — Stock Photo
    Woman sitting on chair
    Portrait confident engineer installing solar panels on sunny rooftop — Stock Photo
    Portrait confident engineer installing solar panels on sunny rooftop
    Power lines in desert landscape. — Stock Photo
    Power lines in desert landscape.
    Wind turbine energy generators on wind farm, with solar panels underneath. — Stock Photo
    Wind turbine energy generators on wind farm, with solar panels underneath.
    Indoors view of Pipeline in a water treatment plant — Stock Photo
    Indoors view of Pipeline in a water treatment plant
    Surface of modern solar panels reflecting bright sun on photovoltaic power station against cloudless blue sky — Stock Photo
    Surface of modern solar panels reflecting bright sun on photovoltaic power station against cloudless blue sky
    Abandoned building flooded by red water in La Naya mining village in Riotinto, Huelva — Stock Photo
    Abandoned building flooded by red water in La Naya mining village in Riotinto, Huelva
    Two large metal windmills in a soybean field with blue sky and clouds, West of Port Colborne; Ontario, Canada — Stock Photo
    Two large metal windmills in a soybean field with blue sky and clouds, West of Port Colborne; Ontario, Canada
    Alternative Energy Generators — Stock Photo
    Alternative Energy Generators
    Male worker working on solar panel in office — Stock Photo
    Male worker working on solar panel in office
    Young man seated at a desk — Stock Photo
    Young man seated at a desk
    Aerial view of Pot Ash at Belle Plain, Saskatchewan, Canada. — Stock Photo
    Aerial view of Pot Ash at Belle Plain, Saskatchewan, Canada.
    Pipeline on oil field — Stock Photo
    Pipeline on oil field
    Engineer looking at gas and oil pipes at power plant. — Stock Photo
    Engineer looking at gas and oil pipes at power plant.
    Worker pressing the control switch in food factory — Stock Photo
    Worker pressing the control switch in food factory
    Fire fighters train at refinery in North Dakota — Stock Photo
    Fire fighters train at refinery in North Dakota
    Engineers discussing paperwork at alternative energy power plant — Stock Photo
    Engineers discussing paperwork at alternative energy power plant
    Solar power plant in Vredendal, Western Cape, South Africa. — Stock Photo
    Solar power plant in Vredendal, Western Cape, South Africa.
    Back view anonymous professional technician wearing checkered shirt checking photovoltaic panels in solar power station on clear sunny weather — Stock Photo
    Back view anonymous professional technician wearing checkered shirt checking photovoltaic panels in solar power station on clear sunny weather
    Engineers reviewing plans at turbine power plant — Stock Photo
    Engineers reviewing plans at turbine power plant
    Oil storage tanks in grid — Stock Photo
    Oil storage tanks in grid
    Flame of burning coke during process of converting from coal in industrial area of factory — Stock Photo
    Flame of burning coke during process of converting from coal in industrial area of factory
    Woman seated at a desk — Stock Photo
    Woman seated at a desk
    Wind turbines on a wind farm and cattle in a pasture, Upolu Point, North Kohala, Island of Hawaii, Hawaii, United States of America — Stock Photo
    Wind turbines on a wind farm and cattle in a pasture, Upolu Point, North Kohala, Island of Hawaii, Hawaii, United States of America
    Pouring coffee in cup — Stock Photo
    Pouring coffee in cup
    Smiling female engineer with blueprint at sunny wind turbine power plant — Stock Photo
    Smiling female engineer with blueprint at sunny wind turbine power plant
    Potash Mining Operation on the Edge of Canyonlands National Park — Stock Photo
    Potash Mining Operation on the Edge of Canyonlands National Park
    Indoors view of Pipeline in a water treatment plant — Stock Photo
    Indoors view of Pipeline in a water treatment plant
    Young male worker holding carabiner at solar station — Stock Photo
    Young male worker holding carabiner at solar station
    Woman standing in office — Stock Photo
    Woman standing in office
    From above crop hands of unrecognizable female sitting at wooden table holding hot coffee in a rustic mug — Stock Photo
    From above crop hands of unrecognizable female sitting at wooden table holding hot coffee in a rustic mug
    Pipeline on oil field — Stock Photo
    Pipeline on oil field
    Vise tool on a wooden table at solar station — Stock Photo
    Vise tool on a wooden table at solar station
    Three business people — Stock Photo
    Three business people