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	Urban heat island was one of the Natural sciences good articles, but it has been removed from the list. There are suggestions below for improving the article to meet the good article criteria. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake.
Article milestones Date Process Result September 13, 2009 Good article nominee Listed March 28, 2023 Good article reassessment Delisted
Current status: Delisted good article

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Section sizes Section size for Urban heat island (32 sections) Section name Byte count Section total (Top) 7,794 7,794 Description 208 11,510 Definition 1,452 1,452 Diurnal variability 6,450 6,450 Seasonal variability 799 799 Models and simulations 2,601 2,601 Causes 5,999 8,373 Climate change as an amplifier 2,374 2,374 Impacts 95 18,405 On weather and climate 3,988 3,988 On human health 6,262 6,262 On water bodies and aquatic organisms 3,110 3,110 On animals 2,497 2,497 On energy usage for cooling 2,453 2,453 Options for reducing heat island effects 1,905 13,370 Planting trees in cities 1,501 1,501 White roofs and light-coloured concrete 4,931 4,931 Green infrastructure 2,611 2,611 Passive daytime radiative cooling 2,422 2,422 Society and culture 27 7,316 History of research 2,500 2,500 Aspects of social inequality 3,590 3,590 Chief heat officers 1,199 1,199 Examples 51 7,043 United States 1,903 4,291 Los Angeles 1,548 1,548 Virginia 840 840 Athens green space initiative 631 631 Sydney 2,070 2,070 See also 150 150 References 28 28 External links 447 447 Total 74,436 74,436

This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.

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I see this article has a WP:GA status. I think it might be in need of reassessment. I haven't yet done an in-depth analysis but from a quick check it seems to me that the structure of the article needs a bit of work (too many level 1 headings for things that could be grouped together, such as impacts). Probably also too many bullet point lists and content that is too detailed here compared to relevant sub-articles. I've had a look at the WP:GAR page and am wondering if it's worth opening a good article reassessment now or later or not at all? (note I won't have time to get involved in depth in the GAR process, does that mean I shouldn't start it?) - Pinging a few people who might be interested: User:William M. Connolley, User:Thegreatdr, User:Ed Poor, User:Vsmith, User:Femke, User:Chidgk1. EMsmile ( talk) 11:04, 14 March 2023 (UTC) reply

I've now already done some of the culling and re-arranging that I felt the article needed to come back to GA status (see also in the sections below). EMsmile ( talk) 14:50, 14 March 2023 (UTC) reply

Note the article that was assessed for GA was the version from September 2009 which looked very different to the article today (my changes today have actually brought it back a little bit closer to the 2009 version as I took out a lot of fluff): https://en.wikipedia.org/?title=Urban_heat_island&oldid=313565723 EMsmile ( talk) 14:50, 14 March 2023 (UTC) reply

I removed a bit of climate denial from the article (using an MDPI source to make a strong claim..), not a good sign. The geographic bias is a neutrality issue, and the article still has quite a few outdated aspects, so I think a GAR may still be warrented. If you explain well how the article does not line up with the criteria, there is only little expectation of remaining engaged. —Femke 🐦 ( talk) 19:01, 14 March 2023 (UTC) reply

Would it be a strong enough argument to say that 14 years is a long time and the current version is very different to the version that was reviewed in 2009? I guess that is not in the criteria list. But I think it would fail this one: "it stays focused on the topic without going into unnecessary detail". Although perhaps once I have finished with my culling and condensing activities it will be closer on the mark for that. EMsmile ( talk) 10:09, 15 March 2023 (UTC) reply

Yes if you do a GAR that would be great I think - for example it might prompt someone to add the 3 cites needed Chidgk1 ( talk) 11:07, 19 March 2023 (UTC) reply

Unfortunately, I don't have time at the moment to give this article more TLC at the moment. I think the current GA label ought to be removed as it's changed so much since 2009 and 14 years is a very long time. Then someone could start a new GAR to try and get the label back (which may or may not be very time consuming, I am not sure). EMsmile ( talk) 16:58, 19 March 2023 (UTC) reply

EMsmile, you may find the GAR-helper script at WP:GAR helpful to nominate at GAR to propose the label is removed. Afterwards, the article will have to go through WP:GAN again to get the label back. —Femke 🐦 ( talk) 17:21, 19 March 2023 (UTC) reply

Tried script and yes it saves a little time and fiddle thanks Chidgk1 ( talk) 17:50, 19 March 2023 (UTC) reply

Update: it's delisted now. EMsmile ( talk) 09:00, 29 March 2023 (UTC) reply

Urban heat island

Hi User:Buidhe, you made an important observation in the GA review discussion above: "Another issue with this article is coverage. A major cause of the effect is not cities per se but the large concentrations of cars (particularly ICEs) and car infrastructure (parking lots, roads, and other paved areas). The article barely mentions this."

I've now added two sentences from this ref to the "causes" section but feel free to expand on this, perhaps with an additional, more general source (as that source was specific to Phoenix). Thanks. EMsmile ( talk) 11:45, 3 July 2023 (UTC) reply

Just came across this subject during a segment of today's PBS News Hour. Linking in case it's of use to editors here. — Rhododendrites ^talk \\ 00:12, 1 October 2023 (UTC) reply

Please see Talk:Urban_dust_dome

thank you,

KaiKemmann ( talk) 09:08, 22 October 2023 (UTC) reply

See my comments today at Talk:Urban dust dome. I found enough refs to demonstrate probable notability for a standalone dust dome article but I think a merge is better.

-- A. B. ^{( talk • contribs • global count)} 15:08, 7 November 2023 (UTC) reply

This article was the subject of a Wiki Education Foundation-supported course assignment, between 24 August 2023 and 8 December 2023. Further details are available on the course page. Student editor(s): Garrarp ( article contribs).

— Assignment last updated by Csatterfield ( talk) 19:08, 9 November 2023 (UTC) reply

This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 September 2023 and 14 December 2023. Further details are available on the course page. Student editor(s): Jasminezapple ( article contribs).

— Assignment last updated by Jasminezapple ( talk) 01:28, 7 December 2023 (UTC) reply

This article is currently the subject of a Wiki Education Foundation-supported course assignment, between 9 January 2024 and 24 May 2024. Further details are available on the course page. Student editor(s): Bob Reginald Ross, Gobrowns420 ( article contribs).

— Assignment last updated by Gobrowns420 ( talk) 18:16, 6 February 2024 (UTC) reply