The U.N. says pollution is having this effect on 1.7 million children a year

Dirty air and water aren't just unpleasant, they have deadly consequences for the world's youngest inhabitants.
More than 1 in 4 global deaths of children under 5 years old are due to polluted environments, including smoggy air, sullied water and poor sanitation, the World Health Organization (WHO) said on Monday.
SEE ALSO: 2 billion children are breathing toxic air, UNICEF reports
Unhealthy living conditions can result in fatal cases of pneumonia, malaria and diarrhea, which together kill some