Kono mura no jinkō wa, shōshikōreika no eikyō de nennen heritsutsuaru.

The population of this village is decreasing year by year due to the declining birthrate and aging population.

Denshi shoseki no fukyū ni tomonai, machi no chiisana hon'ya no kazu wa heritsutsuaru.

With the spread of e-books, the number of small bookstores in towns is decreasing.

Chikyū ondanka no eikyō ni yori, hokkyoku no hyōga ga kyūsoku ni heritsutsuaru.

Due to the effects of global warming, Arctic glaciers are rapidly decreasing.

Kōkeisha busoku ni yotte, dentō kōgei no gijutsu o motsu shokunin ga heritsutsuaru.

Due to a lack of successors, the number of artisans with traditional craft skills is decreasing.

Sumātofon no fukyū de, kōshūdenwa o riyō suru hito wa heritsutsuaru.

With the widespread use of smartphones, the number of people using public phones is decreasing.

Kaihatsu ga susumu koto de, yasei dōbutsu no seisokuchi ga heritsutsuaru no wa shinkokuna mondai da.

The fact that wild animal habitats are decreasing due to advancing development is a serious problem.