A little red flying fox dips a toe in a lake at the mouth of Katherine gorge in the Northern Territory, Nitmiluk national park, Australia on September 20, 2017. (Photo by Glenn Campbell/AAP)

A couple walk in the Retiro park in Madrid on November 17, 2020 as a thick fog falls on the Spanish capital. (Photo by Gabriel Bouys/AFP Photo)

Planes land in fog at Heathrow Airport, west London on January 4, 2014, as heavy fog covers a many parts of the south east. (Photo by Steve Parsons/PA Images via Getty Images)

Farmer Tom Spilman harvests some of the 125,000 pumpkins at Spilman's Pumpkin Farm in Sessay, near Thirsk, North Yorkshire, UK on Monday, September 25, 2023, ahead of the opening of Pumpkin Fest 2023 on Saturday. (Photo by Danny Lawson/PA Images via Getty Images)

People dance to celebrate Midsummer Eve during sunset at the Amager Strandpark in Copenhagen, Denmark, June 23, 2021. (Photo by Hannah McKay/Reuters)

Women sells vegetables at Kaporo market in Conakry, Guinea Monday, September 13, 2021. (Photo by Sunday Alamba/AP Photo)

Buildings in Lujiazui financial district are seen shrouded in fog amid an orange alert for heavy fog in Shanghai, China on January 31, 2024. (Photo by Xihao Jiang/Reuters)