File talk:Holocene Temperature Variations.png

Temperature anomaly from what?

It would be helpful if the baseline conditions could be specified especially if the information provided is outdated back to 2004. GregKaye 05:47, 19 December 2015 (UTC)

Confusing graph, is "BP" 1950? Inset the instrumented record?

As I mentioned on Talk:Global temperature record#Ice core temperatures end at 1950!, the definition of 1950 as "today"/"the present"/the time for "ago" seems common in paleoclimatology, e.g. https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=133 . Is that also the case in this diagram? If so please replace "BP" with Before 1950 so it's more precise, less confusing, and less fodder for "Shocking exposé! Graph shows Earth was warmer 8,000 years ago!"

Instead of linking on this File: page to File:Short_Instrumental_Temperature_Record.png that ends at 2005, you might as well just link to File:20200324_Global_average_temperature_-_NASA-GISS_HadCrut_NOAA_Japan_BerkeleyE.svg which currently goes to 2023. And maybe you could inset that instrumented temperature record in place of "Recent Proxies"; it's confusing having an inset that covers a lot of the same period and ends in 2016. Also, any inset would be clearer if it had diagonal lines connecting the ends of its X axis to the main graph's X axis to indicate what part of the timescale it "zooms in."

BTW, Tierney and Osman 2021 have a nice chart of the last 22,000 years, shown in https://www.sciencealert.com/24-000-years-of-temperature-data-shows-just-how-unprecedented-current-global-heating-is ; "In this new study, Tierney, Osman and colleagues analyzed a staggering 539 paleoclimate records, dating back at least 4,000 years each and together spanning the past 24,000 years." Their synthesis with confidence shading seems easier to grasp, especially if its scale didn't change in the last 1,000 years.

Thanks for doing this, it's a lot of data visualized. Skierpage (talk) 03:06, 5 June 2024 (UTC)