Leigh Ferrara on an advice columnist with a unique subject: peak oil.

In a small liberal town in Massachusetts’ Berkshires, Kathy McMahon makes her living spicing up people’s sex lives. But arguably her most prescient work is not as a couple’s therapist; it’s as an online advice columnist for people who are freaked out about the coming peak-oil crisis.

More than three years ago, peak oil — the idea that we have exceeded or are fast approaching the earth’s maximum capacity for oil extraction — rocked this middle-class, middle-aged clinical psychologist’s mind-set.

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