Supermarket shoppers are being alerted to a potential avocado shortage as climate change threatens to disrupt the supply of the trendy superfood. Key producers like Spain, South Africa, Peru, Chile, and Mexico are facing erratic weather patterns that are hampering avocado yields. The fruit is particularly thirsty, requiring about 320 litres of water to produce just one avocado – that's four times more than what's needed for a kilo of oranges. As temperatures rise and conditions grow drier,