Editing Del Mar, California (section)

==Geography==
[[File:Horse racing delmar (cropped).jpg|thumb|left|Surfside Raceplace.]]
Del Mar is one of only two locations where the [[Torrey pine]] tree naturally occurs. The Torrey pine is the rarest [[pine]] in the United States; only two populations of this [[endangered species]] exist, in Del Mar and on [[Santa Rosa Island (California)|Santa Rosa Island]].<ref>C. Michael Hogan (2008). ''Torrey Pine: Pinus torreyana'', Globaltwitcher, ed. Nicklas Stromberg [http://www.globaltwitcher.com/artspec_information.asp?thingid=62498] {{Webarchive|url=https://web.archive.org/web/20120525111837/http://www.globaltwitcher.com/artspec_information.asp?thingid=62498|date=May 25, 2012}}</ref> The [[Soledad Valley]] at the south of Del Mar severs two colony segments.

At the southern edge of Del Mar is the [[Los Peñasquitos Lagoon]]. To the north is the [[San Dieguito Lagoon State Marine Conservation Area|San Dieguito Lagoon]] and the [[San Dieguito River]], which empties into the Pacific Ocean at Del Mar.

The bluffs along Del Mar's south beach are subject to collapse.<ref>{{Cite news |url=https://www.latimes.com/california/story/2019-08-03/encinitas-beach-cliff-bluff-collapse-california-coast-erosion |title=Encinitas beach cliff collapse that killed 3 women part of larger California coast crisis |date=August 3, 2019 |newspaper=[[Los Angeles Times]] |first1=Alex |last1=Riggins |first2=Gary |last2=Warth |first3=Shelby |last3=Grad |access-date=July 20, 2020 |archive-url=https://archive.today/20190804181327/https://www.latimes.com/california/story/2019-08-03/encinitas-beach-cliff-bluff-collapse-california-coast-erosion |archive-date=August 4, 2019 |url-status=unfit}}</ref><ref>{{Cite news|url=https://www.latimes.com/california/story/2019-08-08/encinitas-cliff-collapse-erosion-california-coast|title=A cliff collapse. Three deaths. More bluff failures expected with rising seas|last=Xia|first=Rosanna|date=August 9, 2019|newspaper=[[Los Angeles Times]]|language=en-US|access-date=August 13, 2019}}</ref>{{cbignore|bot=InternetArchiveBot}}<ref>{{Cite news|url=https://www.delmartimes.net/news/sd-cm-nc-delmar-bluffs-20181216-htmlstory.html|title=Officials press forward with emergency plan following string of collapses at Del Mar bluffs|last=SMITH|first=Joshua Emerson|date=December 16, 2018|work=Del Mar Times|language=en-US|access-date=September 3, 2019}}</ref><ref>{{Cite news |url=https://www.delmartimes.net/news/story/2019-07-28/del-mar-is-weak-link-in-san-diegos-coastal-railroad|title=Del Mar is weak link in San Diego's coastal railroad|last=Diehl|first=Phil|date=July 28, 2019|work=Del Mar Times|language=en-US|access-date=September 3, 2019}}</ref><ref>{{cite news |last1=Smith |first1=Joshua Emerson |last2=Robbins |first2=Gary |title=Bluff collapses within steps of passenger train tracks in Del Mar after heavy rains |url=https://www.latimes.com/california/story/2019-11-30/bluff-collapses-within-steps-of-passenger-train-tracks-in-del-mar-after-heavy-rains |access-date=July 20, 2020 |work=[[Los Angeles Times]] |date=November 30, 2019 |archive-url=https://archive.today/20191203155816/https://www.latimes.com/california/story/2019-11-30/bluff-collapses-within-steps-of-passenger-train-tracks-in-del-mar-after-heavy-rains |archive-date=December 3, 2019 |url-status=unfit}}</ref>{{cbignore|bot=InternetArchiveBot}}<ref>{{Cite news |url=https://www.latimes.com/california/story/2020-01-28/sandag-stabilize-del-mar-bluffs-lossan-rail-corridor|title=To prevent rail line collapse, San Diego area spends $10 million to repair Del Mar bluffs|last=Smith|first=Joshua Emerson|date=January 28, 2020|newspaper=[[Los Angeles Times]]|language=en-US|access-date=January 29, 2020}}</ref><ref>{{Cite news |title=Retreat Is Not An Option As A California Beach Town Plans For Rising Seas|url=https://www.nhpr.org/post/retreat-not-option-california-beach-town-plans-rising-seas|last=Rott|first=Nate|date=December 4, 2018|work=New Hampshire Public Radio|language=en|access-date=May 5, 2020}}</ref> Properties on the bluffs are [[Climate change vulnerability|subject to the impacts of climate change]], such as [[sea level rise]] and  [[coastal erosion]]. The transportation infrastructure is under threat. The city has a [[climate change adaptation]] plan which excludes the option of a [[managed retreat]], the strategy was recommended by the [[California Coastal Commission]] in 2019.<ref name=":1">{{Cite web|last=Diehl|first=Phil|date=October 8, 2019|title=Del Mar will stand its ground against managed retreat|url=https://www.sandiegouniontribune.com/communities/north-county/story/2019-10-08/del-mar-will-stand-its-ground-against-managed-retreat|access-date=January 3, 2021|website=San Diego Union-Tribune|language=en-US}}</ref><ref name=":2">{{Cite web |last=Mulkern |first=Anne C. |title=Coastal City Refuses to Retreat |url=https://www.scientificamerican.com/article/coastal-city-refuses-to-retreat/ |access-date=January 3, 2021 |website=Scientific American |language=en}}</ref>

According to the [[United States Census Bureau]], the city has a total area of {{convert|1.8|sqmi|km2}}, of which {{convert|1.7|sqmi|km2}} of it is land and {{convert|0.1|sqmi|km2}} of it (3.94%) is water.

===Climate===
Del Mar's climate is considered [[mediterranean climate|mediterranean-subtropical]] with warm, dry summers and mild, humid winters. Temperatures exceed {{convert|85|°F|°C}} only on a few occasions throughout the year and rarely drop below {{convert|41|°F|°C}}. The average yearly temperature in Del Mar is approximately {{convert|65|°F|°C}}. Del Mar regularly receives heavy marine layer clouds due to its position between two lagoons and bordered to the west by the Pacific Ocean.