Heavily pregnant Sonari toils under the burning sun in fields dotted with bright yellow melons in Jacobabad, which last month became the hottest city on Earth.
Her 17-year-old neighbour Waderi, who gave birth a few weeks ago, is back working in temperatures that can exceed 50 degrees Celsius (122 degrees Fahrenheit), with her newborn lying on a blanket in the shade nearby so she can feed him when he cries.
