Some ecological economists prioritise adding natural capital to the typical capital asset analysis of land, labor, and financial capital. These ecological economists then use tools from mathematical economics as in mainstream economics, but may apply them more closely to the natural world. Whereas mainstream economists tend to be technological optimists, ecological economists are inclined to be technological sceptics. They reason that the natural world has a limited carrying capacity and that its resources may run out. Since destruction of important environmental resources could be practically irreversible and catastrophic, ecological economists are inclined to justify cautionary measures based on the precautionary principle . 
Eastern nations and their allies still hold considerable . Treasury bonds in their coffers, and they still use the dollar for the most part as the world reserve currency (though they have been preparing the ground for a dollar dump since at least 2008). On top of this, many of these nations also have the option of dumping the dollar as the petro-currency and crushing our monopoly on how oil is traded globally. If any of these measures are taken by countries like Russia, China and Saudi Arabia, the . economic structure will lose the last pillar holding it above water. We will effectively move into third-world status in the course of a few years.