What are some of the variables that cause uneven heating of Earth's surface?

The uneven heating of the Earth's surface by solar radiation is driven by several major geographical, astronomical, and atmospheric variables. First, the curvature of the Earth causes sunlight to strike the equatorial regions directly while hitting the polar regions at a low, slanted angle, spreading solar energy over a larger area. Second, the tilt of Earth's rotational axis creates seasonal variations in solar intensity and daylight duration. Third, differences in surface albedo—such as dark forests absorbing heat versus reflective ice sheets reflecting sunlight—affect absorption rates. Fourth, varying specific heat capacities between vast landmasses and oceans cause land to heat up and cool down much faster than water. You can study these patterns using climatological maps. You can verify global thermal dynamics when observing how these variables establish fundamental temperature gradients across the planet.