Editing Maritime transport (section)

== Environmental impact ==
{{Main|Environmental impact of shipping}}
The environmental impact of shipping includes [[greenhouse gas emissions]], [[Environmental impact of shipping#Sound pollution|acoustic]], and [[oil pollution]].<ref name="Walker et al 2019 Environmental Effects of Marine Transportation">{{Cite book |doi=10.1016/B978-0-12-805052-1.00030-9 |chapter=Environmental Effects of Marine Transportation |title=World Seas: An Environmental Evaluation |pages=505–530 |year=2019 |last1=Walker |first1=Tony R. |last2=Adebambo |first2=Olubukola |last3=Del Aguila Feijoo |first3=Monica C. |last4=Elhaimer |first4=Elias |last5=Hossain |first5=Tahazzud |last6=Edwards |first6=Stuart Johnston |last7=Morrison |first7=Courtney E. |last8=Romo |first8=Jessica |last9=Sharma |first9=Nameeta |last10=Taylor |first10=Stephanie |last11=Zomorodi |first11=Sanam | name-list-style = vanc |isbn=978-0-12-805052-1 |s2cid=135422637 }}</ref> The [[International Maritime Organization]] (IMO) estimates that [[Carbon dioxide]] emissions from [[shipping]] were equal to 2.2% of the global human-made emissions in 2012<ref>{{Citation|title=Third IMO GHG Study 2014|url=http://www.imo.org/en/OurWork/Environment/PollutionPrevention/AirPollution/Documents/Third%20Greenhouse%20Gas%20Study/GHG3%20Executive%20Summary%20and%20Report.pdf|publisher=International Maritime Organization|access-date=2018-12-16|archive-date=2015-10-19|archive-url=https://web.archive.org/web/20151019064411/http://www.imo.org/en/OurWork/Environment/PollutionPrevention/AirPollution/Documents/Third%20Greenhouse%20Gas%20Study/GHG3%20Executive%20Summary%20and%20Report.pdf|url-status=dead}}</ref> and expects them to rise 50 to 250 percent by 2050 if no action is taken.<ref>{{Citation|title=Second IMO GHG Study 2014 |url=http://www.imo.org/en/OurWork/Environment/PollutionPrevention/AirPollution/Documents/Third%20Greenhouse%20Gas%20Study/GHG3%20Executive%20Summary%20and%20Report.pdf |archive-url=https://web.archive.org/web/20151019064411/http://www.imo.org/en/OurWork/Environment/PollutionPrevention/AirPollution/Documents/Third%20Greenhouse%20Gas%20Study/GHG3%20Executive%20Summary%20and%20Report.pdf |url-status=dead |archive-date=2015-10-19 |publisher=International Maritime Organization }}</ref>  The IEA forecasts that ammonia will meet approximately 45% of shipping fuel demands by 2050.<ref>{{Cite news |last=Mehta |first=Amgeli |date=May 15, 2023 |title=In the voyage to net-zero, which green shipping fuel will rule the seas? |url=https://www.reuters.com/sustainability/climate-energy/voyage-net-zero-which-green-shipping-fuel-will-rule-seas-2023-05-15/ |work=Reuters}}</ref>