The sustainability of world civilisation in the face of environmental resource constraints over the next century or two, combining contrasting insights from mainstream ("neoclassical") and ecological economics. More particularly it is on the economics of sustainability concepts at global and national levels, and applying these concepts to national income accounting and sustainability policies. My secondary research interest is the political economy of pollution taxes, especially the comparison between a carbon (emissions) tax and a (carbon) emissions trading scheme for curbing global warming.