The gap has been bridged by government borrowing on an ever larger and ultimately unsustainable scale.

Almost 100 billion of that came in 2006 and 2007, the final years of the debt boom, helping to fuel an ultimately unsustainable level of personal spending.

Each reminded me how consistently well-made these were but also how fundamentally objectionable and ultimately unsustainable the partnership's act was.

During that era of simmering consumer interest in the nutritional merits of whole wheat flour, these mills realized modest but ultimately unsustainable success.

The rift was a result of the antagonistic separation of town and country, and the social-ecological relations of production created by capitalism were ultimately unsustainable.