@misc{ enwiki:1229562623, author = "{Wikipedia contributors}", title = "Polar Research and Policy Initiative --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Polar_Research_and_Policy_Initiative&oldid=1229562623", note = "[Online; accessed 6-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:1229562623, author = "{Wikipedia contributors}", title = "Polar Research and Policy Initiative --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Polar_Research_and_Policy_Initiative&oldid=1229562623}", note = "[Online; accessed 6-July-2024]" }