We describe a "business as usual" (BAU) economy in which pollution is a by-product of productive activity by the current generation but "damages" production for future generations. Over time, conditions in the BAU economy become dire: it gets increasingly polluted, consumption falls and...

We describe a “business as usual” (BAU) economy in which pollution is a by-product of productive activity by the current generation but “damages” production for future generations. Over time, conditions in the BAU economy become dire: it gets increasingly polluted, consumption falls and...