This book, by a Nobel Prize-winning economist, is particularly useful thorough its analysis of global warming and climate change. With statistics and economic models, the author discusses the various elements of climate change and their effect on the world economy. "The Climate Casino" does require considerable concentration, but once absorbed it tells pretty much all that a layman needs to know about climate change.
The author deals with temperature variations in agriculture, in oceans and other habitats. He notes the differences between “managed” systems, which can adapt better through human effort, choice, and innovation (e.g. farming, indoor living, travel, etc. ) and “unmanaged” systems that operate without human intervention (e.g. oceans, wildlife environments, hurricanes, forest fires, etc.).
He notes that in some areas the effects are not significant in the short run, but will burgeon later. For example, he deals intelligently with “tipping points” which, when reached and passed, can result in very radical changes afterwards. He analyzes the effect of coal, oil and gas as energy sources, and notes their different impacts on the environment.
When all is said and done, the author’s conclusion is that climate change poses serious risk to the world economy, and that the economics of climate change come down to the effects of carbon dioxide emissions in the environment.
The key to understanding the author’s solution to the climate change problem lies in his use of the economic concept of “externalities,” which are the eventual costs of economic activity but which lie outside the immediate pressure of the supply and demand.
An example is overfishing in a river; the fisherman knows the cost of fishing (cost of his boat, gear, fuel, etc.) and he adjusts the prices of his fish in order to provide revenue to cover his costs and generate a profit, always within the framework of the supply of fish for sale and consumer demand for them. What the fisherman does NOT factor into the economic equation is the eventual depletion of fish in the river later on. Yet, that too is a cost, for which everyone will eventually pay albeit later in the game. Such a cost, which does not immediately affect producer and consumer, is, then, an “externality.”
The point of this book is that economic activities involving carbon emissions (such as carbon-generated electricity, air travel, automobile travel. etc.) do not take into consideration the “externalities” thereof. Yet these “externalities” generate the great cost of eventual climate change which are not immediately apparent.
The author notes that it is possible to fix the absence of such “externalities” from the immediate supply-and-demand calculus of carbon energy consumption. Governments, through taxation, simply must ensure that the public, in its economic transactions, pay for the full eventual cost of carbon emissions. Such costs can be quantified by the models and statistics outlined throughout the book. The author notes that everyone everywhere, now and indefinitely, consumers simply must face prices that actually reflect the later social and environmental costs of their economic activities. Such prices would then discourage deleterious economic activity involving excessive carbon emissions.
The author is aware that the economic drives towards growth varies in countries that are at different levels of development, and tend to mitigate the attempts of other countries to discourage energy use that yields carbon emissions. Therefore, the effort must be through international cooperation. Countries that will not cooperate must be brought to heel by such means as tariffs, and embargoes.