(Chers Sangaré et Dolo, n’hésitez pas à ajouter votre grain de sel en français !) May I offer you a small Christmas gift: a solution tree, fresh from Mali! The idea occurred to us while facilitating the Mali Knowledge Fair last week: instead of the usual problem tree, where causal relationships are deducted from a problem, we propose to grow a tree of solutions. Experiences feed the stam and the…