User talk:2607:FEA8:BDA0:DC2:F16A:69BD:184A:2153

July 2020
Hello, I'm DVdm. I noticed that you added or changed content in an article, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Carbon dioxide

Note: see wp:Secondary sources, wp:FRINGE and wp:UNDUE. With two secondary sources for this, you might be in business. Pending that, I have undone your edit. Hope this helps. - DVdm (talk) 21:52, 5 July 2020 (UTC)