ice cube

Ghale said many of his colleagues have their eyes on a tactical vest lined with panels of ice cubes that would help regulate their body temperature, but few can afford the price tag.

You could also add a few ice cubes to their water.

Prato demonstrated the method earlier this week outside the emergency department of Valleywise Health Medical Center in Phoenix, packing ice cubes inside an impermeable blue bag around a medical dummy representing a patient.

Cook freezes them in ice cube trays, using them as sauce starters or in pesto, while Herrera makes cream of nettle soup by blending nettles with baked potatoes, milk, butter, garlic and concentrated chicken broth.

Record-breaking heat means ice cubes now cost more than bread and milk in parts of Mali.