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    Researcher stands in his vehicle in the namibian desert — Stock Photo
    Researcher stands in his vehicle in the namibian desert
    Solar panels and windmills in farmland of southwestern Ontario in Canada. — Stock Photo
    Solar panels and windmills in farmland of southwestern Ontario in Canada.
    Solar panels at solar station on a sunny day — Stock Photo
    Solar panels at solar station on a sunny day
    Young man carrying bicycle — Stock Photo
    Young man carrying bicycle
    Amazing mountain scenery in Sichuan yaan Xing county, china — Stock Photo
    Amazing mountain scenery in Sichuan yaan Xing county, china
    Engineer using a laptop at entrance of a wind mill at a wind farm — Stock Photo
    Engineer using a laptop at entrance of a wind mill at a wind farm
    Recycled bottles at recycling centre — Stock Photo
    Recycled bottles at recycling centre
    Large crop of blooming Sweet Onions — Stock Photo
    Large crop of blooming Sweet Onions
    Scenic view of wind turbines juxtaposed with power lines, Wyoming, America, USA — Stock Photo
    Scenic view of wind turbines juxtaposed with power lines, Wyoming, America, USA
    North Saskatchewan River and Ram Range in landscape at Kootenay Plains, Alberta, Canada — Stock Photo
    North Saskatchewan River and Ram Range in landscape at Kootenay Plains, Alberta, Canada
    Bison ( bison bison ) grazing at sunset, Grasslands National Park; Saskatchewan, Canada — Stock Photo
    Bison ( bison bison ) grazing at sunset, Grasslands National Park; Saskatchewan, Canada
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria — Stock Photo
    Aerial view of lake Mooserboden and dam wall, Kaprun High Mountain reservoirs, Salzburg, Austria
    Vegetables growing in a hydroponic greenhouse, Thailand — Stock Photo
    Vegetables growing in a hydroponic greenhouse, Thailand
    Woman using smart phone in conservatory — Stock Photo
    Woman using smart phone in conservatory
    Malachite Kingfisher, Corythornis cristatus, perched on reed — Stock Photo
    Malachite Kingfisher, Corythornis cristatus, perched on reed
    Storm clouds lifting over remote mountain ridge and valley, along the Pacific Crest Trail — Stock Photo
    Storm clouds lifting over remote mountain ridge and valley, along the Pacific Crest Trail
    A lilac-breasted roller, Coracias caudatus, standing on the ground — Stock Photo
    A lilac-breasted roller, Coracias caudatus, standing on the ground
    Close-up of lettuce growing in a hydroponic greenhouse, Thailand — Stock Photo
    Close-up of lettuce growing in a hydroponic greenhouse, Thailand
    The train in Alaska — Stock Photo
    The train in Alaska
    A swarm of bees, Apis mellifera scutellata, congregate together — Stock Photo
    A swarm of bees, Apis mellifera scutellata, congregate together
    Cracked earth in desert — Stock Photo
    Cracked earth in desert
    Wind turbines at sunset in landscape of Palouse, Washington, USA, North America — Stock Photo
    Wind turbines at sunset in landscape of Palouse, Washington, USA, North America
    Lilac-breasted roller ( Coracias caudatus ) facing left on leafy branch, Serengeti National Park,; Tanzania — Stock Photo
    Lilac-breasted roller ( Coracias caudatus ) facing left on leafy branch, Serengeti National Park,; Tanzania
    Woman checking plants in conservatory — Stock Photo
    Woman checking plants in conservatory
    Mekong river and brine well at Tibet mangkang county — Stock Photo
    Mekong river and brine well at Tibet mangkang county
    Computer Repair Shop — Stock Photo
    Computer Repair Shop
    A greater painted snipe, Rostratula benghalensis, on the ground. — Stock Photo
    A greater painted snipe, Rostratula benghalensis, on the ground.
    Two cheetah, Acinonyx jubatus, walk together under a tree — Stock Photo
    Two cheetah, Acinonyx jubatus, walk together under a tree
    Close-up of brown deer grazing in natural reserve — Stock Photo
    Close-up of brown deer grazing in natural reserve
    Rural road in grassland scenery in Hebei province, China — Stock Photo
    Rural road in grassland scenery in Hebei province, China
    Portrait of happy Caucasian female conservation volunteer smiling to camera, her friends in the background. Ecology and social responsibility in rural environment. — Stock Photo
    Portrait of happy Caucasian female conservation volunteer smiling to camera, her friends in the background. Ecology and social responsibility in rural environment.
    Silhouette of wind turbines at sunset, France — Stock Photo
    Silhouette of wind turbines at sunset, France
    Close-up of scarred head of male lion ( panthera leo ), Tarangire National Park; Tanzania — Stock Photo
    Close-up of scarred head of male lion ( panthera leo ), Tarangire National Park; Tanzania
    Wind turbines at sunset; Nanticoke, Ontario, Canada — Stock Photo
    Wind turbines at sunset; Nanticoke, Ontario, Canada
    Ground elder or aegopodium podagraria green leaves and scissors on wooden table — Stock Photo
    Ground elder or aegopodium podagraria green leaves and scissors on wooden table
    Scenic view of wind turbine in rapeseed field, Reims, France — Stock Photo
    Scenic view of wind turbine in rapeseed field, Reims, France
    Young male worker climbing scaffolding at solar station — Stock Photo
    Young male worker climbing scaffolding at solar station
    Rural road in grassland scenery in Hebei province, China — Stock Photo
    Rural road in grassland scenery in Hebei province, China
    Volunteer man wearing a medical mask holding a garbage bag in a forest — Stock Photo
    Volunteer man wearing a medical mask holding a garbage bag in a forest
    Young man in workshop — Stock Photo
    Young man in workshop
    A Three Banded Plover, Charadrius tricollaris — Stock Photo
    A Three Banded Plover, Charadrius tricollaris
    A Lilac Breasted Roller, Coracias caudatus, sitting in a hole in a tree — Stock Photo
    A Lilac Breasted Roller, Coracias caudatus, sitting in a hole in a tree
    Claw releasing recycling in recycling center — Stock Photo
    Claw releasing recycling in recycling center
    Inverted image of wildfire damaged forest along the Pacific Crest Trail — Stock Photo
    Inverted image of wildfire damaged forest along the Pacific Crest Trail
    A White-fronted bee-eater, Merops bullockoides, sitting on a branch — Stock Photo
    A White-fronted bee-eater, Merops bullockoides, sitting on a branch
    Middle East area of Earth globe, detailed and photorealistic 3d illustration. — Stock Photo
    Middle East area of Earth globe, detailed and photorealistic 3d illustration.
    Mekong river and brine well at Tibet mangkang county — Stock Photo
    Mekong river and brine well at Tibet mangkang county
    Engineer taking notes on a writing pad at a wind farm — Stock Photo
    Engineer taking notes on a writing pad at a wind farm
    Mother and daughter recycling cardboard in driveway — Stock Photo
    Mother and daughter recycling cardboard in driveway
    Portrait of worker holding blueberries in basket — Stock Photo
    Portrait of worker holding blueberries in basket
    Multi ethnic group of conservation volunteers cleaning up forest in the countryside, talking around table. Ecology and social responsibility in rural environment. — Stock Photo
    Multi ethnic group of conservation volunteers cleaning up forest in the countryside, talking around table. Ecology and social responsibility in rural environment.
    North America view of Earth globe, detailed and photorealistic 3d illustration. — Stock Photo
    North America view of Earth globe, detailed and photorealistic 3d illustration.
    Man seated at a computer — Stock Photo
    Man seated at a computer
    Two zebras walking in green grass with clear horizon — Stock Photo
    Two zebras walking in green grass with clear horizon
    Close-up view of Philautus vittiger frog on a green plant, Indonesia — Stock Photo
    Close-up view of Philautus vittiger frog on a green plant, Indonesia
    Countryside forest with cloudy sky covered by fire smoke during the evening — Stock Photo
    Countryside forest with cloudy sky covered by fire smoke during the evening
    A leopard, Panthera pardus, climbing down a tree — Stock Photo
    A leopard, Panthera pardus, climbing down a tree
    Male worker working on windmill in office — Stock Photo
    Male worker working on windmill in office
    The low carbon life of a happy family — Stock Photo
    The low carbon life of a happy family
    Red-and-yellow barbet ( Trachyphonus erythrocephalus ) on branch with head turned; Tanzania — Stock Photo
    Red-and-yellow barbet ( Trachyphonus erythrocephalus ) on branch with head turned; Tanzania