worker images - Joel Sartore

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A staff member fires up a lawn trimmer on the grounds of the replica of the Taj Mahal at Parque Jaime Duque in Columbia.

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Staff members sweep the bridge leading to the replica of the Taj Mahal at Parque Jaime Duque in Columbia.

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An elderly man gathers oranges in California’s citrus growing belt.

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At the end of a workday, employees of Pebac, a “maquiladora,” or assembly plant , leave to catch the buses that will take them home.

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A woman stands beneath a home watching crews build new berms, with BP money, in order to protect the beaches from storm water and the oil from the deep water horizon spill that could come with it on Dauphin Island, Alabama.

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Workers sift through sand to separate the oil on the beaches of Dauphin Island, Alabama.

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Workers from Southern Native Plants out of Milton, Florida planting sea oats (Uniola paniculata) on a newly created sand dune to protect Dauphin Island, Alabama from the deep water horizon oil spill.

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Sea turtles that were rescued from the deep water horizon oil spill being rehabilitated at the Audubon Nature Institute in New Orleans, Louisiana.

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A sea turtle that was rescued from the deep water horizon oil spill are being rehabilitated at the Audubon Nature Institute in New Orleans, Louisiana.

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A sea turtle that was rescued from the deep water horizon oil spill are being rehabilitated at the Audubon Nature Institute in New Orleans, Louisiana.

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A crew of BP contract workers remove booms saturated with oil from the Deepwater Horizon spill from important bird breeding habitat in the Gulf of Mexico.

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A biologist working for the National Parks Service holds an introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service holds an introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service pulls up a catch of introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service holds an introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service collects introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service collects introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A biologist working for the National Parks Service collects introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.

Biologists in King's Canyon National Park's Sixty Lake Basin, Nevada.

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Biologists in King’s Canyon National Park’s Sixty Lake Basin, Nevada.

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A biologist working for the National Parks Service holds an introduced (non-native) trout at the Sixty Lake Basin of King’s Canyon National Park, Nevada.