According the World Health Organization, four million children under the age of five die every year due to environmental hazards. Poisonings, acute respiratory infections, diarrhea diseases, and malaria carried by mosquitoes that thrive in dirty water account for most of the toll. About 30 percent of illnesses and deaths in children due to disease can be attributed to environmental factors. You can read more information here.
Now, someone tell me how creation care is NOT something that Christians should be concerned about.