Editing Colorado River (section)

====Minute 319====
In the 21st&nbsp;century, there has been renewed interest in restoring a limited water flow to the delta. In November 2012, the U.S. and Mexico reached an agreement, known as Minute 319, permitting Mexico storage of its water allotment in U.S. reservoirs during wet years, thus increasing the efficiency with which the water can be used. In addition to renovating irrigation canals in the Mexicali Valley to reduce leakage, this will make about {{convert|45000|acre.ft|m3}} per year available for release to the delta on average. The water will be used to provide both an annual base flow and a spring "pulse flow" to mimic the river's original snowmelt-driven regime.<ref>{{cite news |title=Colorado River Agreement to Help Restore Vanished Wetlands in Mexico |url=http://pri.org/stories/2012-11-26/colorado-river-agreement-help-restore-vanished-wetlands-mexico |first1=Jason |last1=Margolis |first2=Lisa |last2=Mullins |work=The World |publisher=Public Radio International |date=November 26, 2012 |access-date=November 2, 2013 |archive-date=August 19, 2021 |archive-url=https://web.archive.org/web/20210819072354/https://www.pri.org/stories/2012-11-26/colorado-river-agreement-help-restore-vanished-wetlands-mexico |url-status=live }}</ref><ref>{{cite web |url=https://www.watereducation.org/userfiles/RiverReport_Winter13_web.pdf |title=Minute 319: Building on the Past to Provide for the Future |publisher=Water Education Foundation |work=River Report |date=2012–2013 |access-date=June 29, 2013 |url-status=dead |archive-url=https://web.archive.org/web/20140501135538/https://www.watereducation.org/userfiles/RiverReport_Winter13_web.pdf |archive-date=May 1, 2014}}</ref> The first pulse flow, an eight-week release of {{convert|105000|acre.ft|m3}}, was initiated on March 21, 2014, with the aim of revitalising {{convert|2350|acre|hectare}} of [[wetland]].<ref name="Pulse">{{cite magazine |title=Huge water pulse to bring Colorado river back from dead |url=https://www.newscientist.com/article/mg22129602.800-huge-water-pulse-to-bring-colorado-river-back-from-dead.html#.U3pqrijYJJQ |first=Hal |last=Hodson |magazine=New Scientist |date=March 12, 2014 |access-date=May 19, 2014 |archive-date=August 28, 2021 |archive-url=https://archive.today/20210828120731/https://www.newscientist.com/article/mg22129602-800-huge-water-pulse-to-bring-colorado-river-back-from-dead/?ignored=irrelevant%23.U3pqrijYJJQ |url-status=live }}</ref> This pulse reached the sea on May 16, 2014, marking the first time in 16 years that any water from the Colorado flowed into the ocean, and was hailed as "an experiment of historic political and ecological significance" and a landmark in U.S.–Mexican cooperation in conservation.<ref name="Sacred"/><ref>{{cite magazine |title=Colorado river reaches sea for first time in decades |url=https://www.newscientist.com/article/dn25587#.U3pqsyjYJJQ |first=Hal |last=Hodson |magazine=New Scientist |date=May 19, 2014 |access-date=May 19, 2014 |archive-date=August 19, 2021 |archive-url=https://web.archive.org/web/20210819071944/https://www.newscientist.com/article/dn25587-colorado-river-reaches-sea-for-first-time-in-decades/#.U3pqsyjYJJQ |url-status=live }}</ref><ref>{{cite news |last=Galvan |first=Astrid |date=May 19, 2014 |title=Colorado River Reaches Gulf |publisher=ABC and Associated Press |url=https://abcnews.go.com/US/wireStory/colorado-river-reaches-gulf-23753772 |url-status=dead |access-date=May 19, 2014 |archive-url=https://web.archive.org/web/20140519073738/https://abcnews.go.com/US/wireStory/colorado-river-reaches-gulf-23753772 |archive-date=May 19, 2014}}</ref> The pulse will be followed by the steady release of {{convert|52000|acre.ft|m3}} over the following three years, just a small fraction of its average flow before damming.<ref name="Pulse"/>{{needs update|date=February 2021}}