josias: my perspective has changed. i used to think, what will be will be.nything about the quality of my coffee bea. so this is a success and we're going to continue growing our coffee. katja: so far, cafecol is working with 180 producers but hopes to increase that to 600. plantations can thrive. host: poverty is on the rise across the globe. thanks in part to the many crises facing us, including the pandemic. poorer districts are expanding in cities. take the slums of nairobi, for example. more and more people are moving there out of financial desperation, or because drought has devastated their villages. many slumlords see it as a business opportunity. they rent out substandard housing to tenants who are alrey in dire raits. they renreporter:standard hmathare is one of kenya's biggest slums. landlords such as peter chege offer the cheapest possible housing, with no kitchen or running water and collect rent, with violence if need be. they take in a lot of money, and have the reputation for exploiting kenya's poorest. peter: i've got 30 houses here in matha