The article should begin with a topic sentence, such as "A methane leak is a type of significant natural gas leak from an industrial facility."
Links should be downcased as far as possible: so [[methane]] rather than [[Methane]]. Only the first occurrence of a word or phrase should be linked, in general. In the case of methane, if it is used bolded in the topic sentence as shown, you'd link the second occurrence. This just makes it easier to read.
Months and years normally do not need to be linked.
Create the heading with ==Examples of methane leaks==
To reuse the reference, make the later footnotes just with <ref name="LoC"/>, i.e. the name tag just with a slash in it.
Obviously this is just a "stub" article so far, in need of expansion. Charles Matthews (talk) 08:41, 27 April 2023 (UTC)Reply
@MatthewDuncan101: Your sandbox article draft has been moved here, at a downcased title, and is ready for further development. In a few days time, I may start working on it. You can of course work on it yourself. You are an autoconfirmed user, meaning that you have the Move button on the Tools menu. In due course I'll move this draft into the main article space, when I think it is of the right standard. You can also do that yourself. Charles Matthews (talk) 09:16, 27 July 2023 (UTC)Reply