Desert-fringe vegetation in arid regions like the western Negev/northern Sinai increases heat transfer from the ground to the air during the day by making the ground absorb more sunlight and reducing soil heat. This helps create more convection and grow the planetary boundary layer. Overgrazing removes this vegetation, reducing heat transfer and leading to less daytime rain, increasing the chances of drought. This effect may be seen in other African countries with similar conditions, where keeping large herds of grazing animals could worsen droughts. Studying precipitation patterns throughout the day in Africa could help understand how surface conditions affect drought.