A strange way to create national borders.

Africa is not all desert, savannah & jungles. There are more complex climate environments such as desert shrublands (Karoo & Sahelian regions), subtropical regions (southeast Africa), wetlands (i. e. marshlands & swamplands) & even places in the mountains that freeze over during African winters. But what if we could draw borders along these climate zones & make them countries? How would such a world look?