Demonstrators gathered in Zagreb accusing Croatia's government of delaying action on a hazardous waste crisis, according to Al Jazeera.
A 21-year-old student says he faced ridicule before his solo effort to clear a polluted river gained recognition, according to Al Jazeera.
Researchers say destruction of sewage systems in Gaza may have contributed to algae blooms in the Mediterranean Sea, according to a report from Al Jazeera.
Authorities imposed a state of emergency in Sarawak's Serian district after air pollution levels were classified as 'hazardous,' according to Al Jazeera.