Stephan's Tuesday Picks

• Roger Martin: Do you know what's going on below (Medium)
• Amid imported food shortages, greenhouse farming takes off in Canada (Globe and Mail)
• One big web: A few ways the world works (Collaborative Fund)
• Demand for food banks reaches record high levels in Ontario (Globe and Mail)
• P&G earnings powered by higher prices for detergent, toothpaste (WSJ)