On a foggy morning in March 1977, two Boeing 747s collided at Los Rodeos Airport in Tenerife, one of the Spanish Canary Islands. The damage was calamitous: 583 people died, leaving only 61 survivors. The world was shocked by the scale of the tragedy. Imagine, now, two 747s crashing into each other every hour. Today. And the next day. And the day after. Every day. Every year. This is the death toll wrought by extreme poverty on a daily basis....