File:Shipping routes red black.png

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English: Shipping density (commercial). A Global Map of Human Impacts to Marine Ecosystems, showing relative density (in color) against a black background. Scale: 1 km.
More details available at:
Source Own work, derived from the work of Tomislav Hengl at
Source refs: Halpern, B.S., et al. 2008. A Global Map of Human Impact on Marine Ecosystems. Science 319(5865):948-952.
Source date: 2008
Source owner: University of California, National Center for Ecological Analysis and Synthesis
Author Grolltech (derived from Hengl (derived from B.S. Halpern))
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This file was derived from: Shipping routes.pngShipping routes.png

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B.S. Halpern (T. Hengl; D. Groll) / Wikimedia Commons / CC BY-SA 3.0
B.S. Halpern (T. Hengl; D. Groll) / Wikimedia Commons


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current18:43, 16 February 2013Thumbnail for version as of 18:43, 16 February 20133,600 × 1,800 (2.63 MB)Grolltech (talk | contribs)increase saturation and contrast
15:26, 19 March 2012Thumbnail for version as of 15:26, 19 March 20123,600 × 1,800 (1.13 MB)Grolltech (talk | contribs)
15:25, 19 March 2012Thumbnail for version as of 15:25, 19 March 20123,600 × 1,800 (1.13 MB)Grolltech (talk | contribs)
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