Fifty years ago, farmers in Italy's Emilia-Romagna region used to open the windows in their barns at night during the summer to keep their cattle cool.

Today, as heatwaves send temperatures soaring to record highs, ‌those windows stay open round the clock to protect the cows, and ultimately their milk, the foundation of the area's centuries-old Parmigiano Reggiano cheese industry.

Production of authentic Parmigiano Reggiano is only allowed in five provinces, and cows must be fed exclusively with grass and hay grown there. "If it doesn't rain, grass doesn't grow, hay cannot be produced and it's impossible to obtain the milk needed to make the cheese," Bertinelli, 54, told Reuters.

The details of footballers’ attire at the World Cup are shaped as much by personal preference and style as by performance. Nowhere is this more visible than from the knee down, where players take different approaches to how they wear their socks, blending comfort, performance and aesthetics.