The Sun strength slider is all you need. Everything here is optional.
Temperature sets the snow line and whether rain or snow falls. Humidity slows evaporation and speeds condensation. Wind drives the clouds.
Plants add transpiration and help water soak in. Sand soaks, clay sheds. Pavement sends almost everything to runoff.
Tap a label in the scene for a plain-language definition. The small number is the rate compared with the starting scene.
Drag to orbit, scroll or pinch to zoom, right-drag to pan.
Text size
Graphics quality
Keys: Space plays or pauses, [ and ] change the Sun strength, S starts the steps, Left and Right arrows move through them, 1 to 9 jump to a step, T labels, W water budget, A arrows, G groundwater, arrow keys turn the view when the scene has focus, plus and minus zoom, R resets the view, Shift+R resets everything, L lesson, M this panel, D light or dark, P presentation, Esc closes panels.