Onward: Exploring São Paulo's Vibrant Coffee Culture

Some coffee is made to be sipped, while some shouldn't be swallowed at all. While on assignment in Brazil, Dan and Spencer hit the streets of São Paulo to see how the city gets its coffee fix.

Click to read about how a recent drought impacted Brazil's coffee crop.

By 2050 we'll need to feed two billion more people. Click here for a special eight-month series exploring how we can do that—without overwhelming the planet.

Onward is a project to explore the world and share its untold stories. Click to hit the road with National Geographic multimedia journalists Spencer Millsap and Dan Stone. Or tweet them at @spono and @danenroute to join the conversation.