And does minimal living always equate to sustainable living? If you're jetting all over the world in a plane, is that environmentally friendly? Wouldn't the locals prefer you spend some of your tourist money on their goods and services so they too can live a comfortable life? Many environmentalists believe the huge amount of resources needed to rear and feed animals is unsustainable. Giving up meat or reducing our consumption could be considered sustainable, but it's not what people would consider as part of a minimal lifestyle.
And finally, is it really a choice between a consumer/material lifestyle and a minimal lifestyle? Or more realistically, a choice between excessive material consumption (e.g. 70 shirts as stated in the article) or just a more modest material lifestyle?