As Erwan Humbert turns his tractor off and climbs down from the seat, the rumble of a motor gives way to the twittering of birds. The scent of fresh earth fills the air. This baby-faced farmer, with his long, dark hair pulled back into a ponytail, used to be an engineer. But the 44-year-old traded in his job in Paris' business district to grow organic vegetables in the countryside.
Humbert says he makes a good living, and most of all, he's happy.
"I might not earn as much as I used to," he says, "but I'm my own boss and now I can listen to the sound of the birds."