Senku and the kingdom are going to need rations to be well during their attack on Tsukasa’s empire. There’s a science for that.
In this stone world, a mega-cold 
winter battlefield is hell.
.في هذا العالم الحجري، ساحة المعركة في الشتاء البارد تُعَدّ جحيمًا
In dieser Steinwelt wäre eine Schlacht
im arschkalten Winter die reinste Hölle.
En el Mundo de Piedra,
En el Mundo de Piedra,
Dans ce monde primitif,
Nello Stone World,
Neste mundo de pedra, um campo de batalha 
frio demais como no inverno é um inferno.