When I first began writing articles about ecology nearly two decades ago, I used the term “sustainability” quite frequently. But I am beginning to think that the term “transformation” would be a better one to focus on. In a recent lecture presented at Providence University College, Mark A. Burch, author of “Stepping Lightly: Simplicity for People and the Planet,” suggested that the concept of “sustainability” has been high-jacked in recent years by those who suggest that we can maintain our current levels of consumption, only find sustainable ways to do so. Such thinking, says Burch, must be replaced with the concept of “transformation,” which he suggests will call for significant adjustments to status quo lifestyle expectations. Things are moving more quickly than anticipated. From 1970 to 2010 half of all living species on the planet have been depleted. Temperatures are rising more quickly than anticipated as ice packs are disappearing....