To begin with, the wording of the conclusion suggests that funding for mining regulation generally should be reduced, yet the premises are about copper mining only. There are many mined resources other than copper; advances in copper synthesis technology will in all likelihood have no bearing on whether regulation of other kinds of mining should be changed.
Furthermore, the argument depends on the assumption that copper mining will slow down once copper can be chemically synthesized. However, the author provides no evidence to substantiate this assumption. Moreover, it is entirely possible that copper mining will remain less expensive than copper synthesis. If so, there will be no incentives, outside of regulatory ones, to slow down copper mining. In a word, the problem of over-mining will remain.
Finally, the argument relies on the assumption that synthesizing copper will not create the same kind of pollution problems as those resulting from the synthesis of copper substitutes. However, the author provides no evidence to substantiate this assumption. Without such evidence, we cannot accept the premise that pollution problems will be eliminated by switching from producing copper substitutes to producing copper itself.
In conclusion, I am not convinced on the basis of this argument that the time has come to cut funding for the regulation of mining in general, or even for the regulation of copper mining in particular. To strengthen the argument, the author must restrict the scope of the conclusion to copper mining rather than to mining in general. The author must also provide support for the two assumptions underlying the argument.
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