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At night, a wind turbine is assembled using a large crane. Workers secure the rotor blade while warning lights illuminate the construction site in the dark.
Panicum virgatum 'Heavy Metal'; switchgrass, grass with green leaves
Defocused Background of Industrial Factory Interior with Large Machinery and Equipment Under Dramatic Lighting. Blurred Background Photo.
Toxic mine water discharge, acid mine drainage contaminates the environment. Rosia Montana, Romania
European woman working in warehouse, lifting heavy bag. Storehouse worker carrying bag.

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