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297:18th century in the environment
49:human impact on the environment
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32:These articles relate to the
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219:1717 in the environment
292:Environment by decade
65:environmental issues
35:natural environment
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57:conservation
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286:Categories
302:1710s
271:(2 C)
247:(1 C)
223:(2 C)
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120:1750s
115:1740s
110:1730s
105:1720s
100:1710s
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90:1690s
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