Editing Oil spill (section)

=== Pipelines ===
As of 2010, overall, there has been a substantial increase of pipeline oil spills in the past four decades.<ref name=":1" /> Prominent examples include [[Environmental issues in the Niger Delta|oil spills of pipelines in the Niger Delta]]. Pipeline oil spills can be caused by trawling of fishing boats, natural disasters, pipe corrosion, construction defects, sabotage, or an attack,<ref name=":4" /> as with the [[Caño Limón–Coveñas pipeline|Caño Limón-Coveñas pipeline]] in Colombia.

[[Pipeline transport|Pipelines]] as sources of oil spills are estimated to contribute 1% of oil pollution to the oceans.<ref name=":3" /> Reasons for this are underreporting, and many oil pipeline leaks occur on land with only fractions of that oil reaching the oceans.