For hours, António Guterres’ car had moved along a sinuous road, which opened against an arid landscape, but then one last curve, and a few hundred feet up a hill, the view outside his window bursts into myriad shades of green, as small terraces supported by stone walls filled with banana trees, palms and sugar cane, came into view, with silvery water streams flickering in the distance.
The lush Paúl Valley can be found in the…