China's rapid economic growth is producing a surge in emissions of greenhouse gases that threatens international efforts to curb global warming, as Chinese power plants burn ever more coal while car sales soar.Even assuming one accepts the unprovable assumption that global warming is driven by pollution caused by humans (as the NY Times does), The Economist argued on Jul 4th 2002:
Until the last few months, many energy experts and environmentalists said, they had hoped that China's contribution to global warming would be limited. Its state-owned enterprises have become more efficient in their energy use as they compete in an increasingly capitalist economy, and until recently official Chinese statistics had been showing a steep drop in coal production and consumption.
At the moment, the harm done to human health and the environment from burning fossil fuels is not reflected in the price of those fuels, especially coal, in most countries.
and on Aug 2nd 2001, Bjorn Lomborg pointed out with reference to the Kyoto Protocol,
fear of largely imaginary environmental problems can divert political energy from dealing with real ones....Some environmental policies, such as reducing lead in petrol and sulphur-dioxide emissions from fuel oil, are very cost-effective. But many of these are already in place. Most environmental measures are less cost-effective than interventions aimed at improving safety (such as installing air-bags in cars) and those involving medical screening and vaccination. Some are absurdly expensive.
Yet a false perception of risk may be about to lead to errors more expensive even than controlling the emission of benzene at tyre plants. Carbon-dioxide emissions are causing the planet to warm. The best estimates are that the temperature will rise by some 2°-3°C in this century, causing considerable problems, almost exclusively in the developing world, at a total cost of $5,000 billion. Getting rid of global warming would thus seem to be a good idea. The question is whether the cure will actually be more costly than the ailment.
Despite the intuition that something drastic needs to be done about such a costly problem, economic analyses clearly show that it will be far more expensive to cut carbon-dioxide emissions radically than to pay the costs of adaptation to the increased temperatures. The effect of the Kyoto Protocol on the climate would be minuscule, even if it were implemented in full. A model by Tom Wigley, one of the main authors of the reports of the UN Climate Change Panel, shows how an expected temperature increase of 2.1°C in 2100 would be diminished by the treaty to an increase of 1.9°C instead. Or, to put it another way, the temperature increase that the planet would have experienced in 2094 would be postponed to 2100.
So the Kyoto agreement does not prevent global warming, but merely buys the world six years. Yet, the cost of Kyoto, for the United States alone, will be higher than the cost of solving the world's single most pressing health problem: providing universal access to clean drinking water and sanitation. Such measures would avoid 2m deaths every year, and prevent half a billion people from becoming seriously ill.
And that is the best case. If the treaty were implemented inefficiently, the cost of Kyoto could approach $1 trillion, or more than five times the cost of worldwide water and sanitation coverage. For comparison, the total global-aid budget today is about $50 billion a year.
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