Iraq probes fish die-off in marshes | In Pictures News

Iraqi authorities have opened an investigation into a mass die-off of fish in the country’s central and southern marshlands, the latest in a series of such incidents in recent years.

One possible cause for the devastation is a shortage of oxygen, triggered by low water flow, increased evaporation and rising temperatures driven by climate change, according to officials and environmental activists. Another is the use of chemicals by fishermen.

“We have received several citizens’…