It is not necessarily a literary work, some are popular science, and some are biographies.
If we talk about literature, there are too many literatures that mention environmental protection, because environmental protection is inherently very broad.
For example, the works that won the first National Environmental Literature Outstanding Work Award include:
"The Loss and Reconstruction of Green Homes" by Zhang Ren
"Toward the North" by Li Jiang Tree
"Whale Sorrow" Li Cunbao
"Green Song" Li Jingping
"Oh, My Hoh Xil"
Reportage "Logging" "Awakening"
Prose collection "Qingyang News"
Poetry collection "Rejecting the Doomsday"
etc.
In addition, "Silent Spring" and "Stolen Harvest". The same goes for "Only One Earth" and "Environmental Protection Bureau".