Well, listen, again, if I could just pick you up on that one. We do know the numbers for the European Union - not for Germany, but for the European Union. They're planning to cut their emissions 20 per cent below 1990 levels by 2020.
The macroeconomic models indicate that the cost of that, the average of all these macroeconomic models indicate the cost will be about $250 billion a year. And the net effect, after having done that for 80 years, till 2100, will be a reduction in temperature by one 20th of one degree centigrade.
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