Some people argue that we are morally obliged to reduce greenhouse gases aggressively because otherwise the world’s current development path would be unsustainable, and our descendants will be worse off than we are.
But will a warmer world be unsustainable, and leave our descendants worse off?
I have examined these claims out to the year 2200, using the IPCC’s own assumptions regarding future economic development and results generated by the Stern Review on the economics of climate change. Note that both the IPCC and Stern are viewed quite favorably by proponents of drastic GHG reductions (see, e.g., here).
The first figure (see below)…