In the short story, “The Necklace,” by Guy de Maupassant, one man vs. nature conflict is with regard to the cool night weather. Had the weather been warmer, perhaps the Loisels would have walked home from the party. We know it was cold, however, as Mr. Loisel attempted to put his wife’s coat around her shoulders. This coldness led them to taking a cheap and shabby carriage in a dimly lit area rather than walking. Had the weather been nice and the Loisels walked home, they would have noticed when the necklace fell off, and they would have heard it clatter on the stones of the road. As it was it probably fell off in the carriage, and when the poor driver found it, he probably never considered returning it.
"The Necklace" short story by Guy De Maupassant is also concerned with humanity and spirituality and nature on a deeper level.
The necklace was thought to have value, but turned out to be fake and valueless, possibly like the ambitions of shallow social climbers who value the materialistic things of this life over spiritual aesthetic ones.
Man, and humanity,is flawed - as the necklace turned out to be.
Nature can be stunningly beautiful and awesome when it is genuine such as the elements of a genuine priceless diamond. When it is copied,or imitated, it suddenly becomes "paste" - cheap and worthless and tacky, maybe like the morals of the superficial "nouveau riche."
The Loisels risked everything of integrity that they had, even though it didn't seem much to them, for nothing.