Editing Eutrophication (section)

====Seaweed farming====
Studies have demonstrated seaweed's potential to improve nitrogen levels.<ref>{{Cite journal |last1=Kim |first1=Jang K. |last2=Kraemer |first2=George P. |last3=Yarish |first3=Charles |date=2014 |title=Field scale evaluation of seaweed aquaculture as a nutrient bioextraction strategy in Long Island Sound and the Bronx River Estuary |journal=Aquaculture |volume=433 |pages=148–156 |bibcode=2014Aquac.433..148K |doi=10.1016/j.aquaculture.2014.05.034}}</ref><ref>{{cite web |last1=Kroeger |first1=Timm |date=May 2012 |title=Dollars and Sense: Economic Benefits and Impacts from two Oyster Reef Restoration Projects in the Northern Gulf of Mexico |url=https://www.conservationgateway.org/Files/Pages/dollars-and-sense-economi.aspx |url-status=live |archive-url=https://web.archive.org/web/20200803151420/http://www.conservationgateway.org/Files/Pages/dollars-and-sense-economi.aspx |archive-date=August 3, 2020 |access-date=July 29, 2020 |publisher=The Nature Conservancy}}</ref>  [[Seaweed farming|Seaweed aquaculture]] offers an opportunity to mitigate, and adapt to climate change.<ref>{{cite journal|last1=Duarte|first1=Carlos M.|last2=Wu|first2=Jiaping|last3=Xiao|first3=Xi|last4=Bruhn|first4=Annette|last5=Krause-Jensen|first5=Dorte|date=April 12, 2017|title=Can Seaweed Farming Play a Role in Climate Change Mitigation and Adaptation?|journal=Frontiers in Marine Science|volume=4|page=100 |doi=10.3389/fmars.2017.00100|doi-access=free|bibcode=2017FrMaS...4..100D |hdl=10754/623247|hdl-access=free}}</ref> Seaweed, such as kelp, also absorbs phosphorus and nitrogen<ref>{{Cite web|url=https://e360.yale.edu/features/new_breed_of_ocean_farmer_aims_to_revive_global_seas|title=Can We Save the Oceans By Farming Them?|website=Yale E360|access-date=March 8, 2019|archive-date=October 19, 2019|archive-url=https://web.archive.org/web/20191019150923/https://e360.yale.edu/features/new_breed_of_ocean_farmer_aims_to_revive_global_seas|url-status=live}}</ref> and is thus helpful to remove excessive nutrients from polluted parts of the sea.<ref>{{Cite journal|last1=Xiao|first1=X.|last2=Agusti|first2=S.|last3=Lin|first3=F.|last4=Li|first4=K.|last5=Pan|first5=Y.|last6=Yu|first6=Y.|last7=Zheng|first7=Y.|last8=Wu|first8=J.|last9=Duarte|first9=C. M.|year=2017|title=Nutrient removal from Chinese coastal waters by large-scale seaweed aquaculture|journal=Scientific Reports|volume=7|pages=46613|bibcode=2017NatSR...746613X|doi=10.1038/srep46613|pmc=5399451|pmid=28429792}}</ref> Some cultivated seaweeds have very high productivity and could absorb large quantities of N, P, {{CO2}}, producing large amounts of {{chem2|O2}} having an excellent effect on decreasing eutrophication.<ref>{{Citation|last=Duarte|first=Carlos M.|title=Coastal eutrophication research: A new awareness |date=2009|work=Eutrophication in Coastal Ecosystems|pages=263–269|publisher=Springer Netherlands|doi=10.1007/978-90-481-3385-7_22|isbn=978-90-481-3384-0}}</ref> It is believed that seaweed cultivation in large scale should be a good solution to the eutrophication problem in [[coastal waters]].