Rajesh Kumar Singh/AP
An Indian commuter pours water over his head to cool off as young children watch from a window at a railway station in Allahabad, India on Monday. Most of north India has been reeling under heat wave conditions with temperature soaring to over 46 degree Celsius (115 degrees Fahrenheit)
The Danakil Depression in Ethiopia is one of the hottest and harshest environments on earth, with an average annual temperature of 94 degrees Fahrenheit (34.4 Celsius). For centuries, merchants have traveled there with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted and shaped into slabs, then loaded onto the animals before being transported back across the desert so that it can be sold around the country.
Women collect water from a pond on the outskirts of Sanaa in Yemen
A small girl drinks water from a steel cup as her parents construct a pavement in New Delhi, India, on Wednesday. The capital is reeling under a heat wave with temperatures touching 40.8 degrees
Standing next to the railway tracks, men use pipes that supply water to the trains to bathe with at a railway station in Allahabad, northern India, as temperatures in the city on Wednesday reached 41.5C
An Indian boy drinks water on a hot summer day, as his family of trinket sellers rest nearby in New Delhi, India.