The sustainability people live in a world of no trade-offs, an ignorant position from which to advocate a long and radical agenda. So, what else is new? Go to their latest product to fully appreciate the associated political goals.
There is also a pseudo-scientific argument that a Genuine Progress Indicator (GPI) should replace conventional GDP.
Perhaps a useful and timely undergrad (or grad) econ (or other) final would be an assignment to spot the conceptual flaws in the GPI approach. Students that have really grasped their economic thinking ought to do very well.
This is the least we can do for undergraduates, before they end up in a class that takes GPI seriously -- before their own kids bring GPI home as part of a school assignment.