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Climate Change Bill [Lords]

I am grateful to the right hon. Gentleman. Like other industries, aviation and shipping are, of course, susceptible to technological change. On the £205 billion cost—that is the upper end; the lower end is £30 billion—may I point out that the impact assessment said:"““Upper end of the range assumes no technological change””?" There may well be technological change in aviation and shipping. Conversely, on the benefits, which are between £82 billion and £110 billion, the impact assessment says:"““Benefits are therefore likely to be higher.””" I suggest that the right hon. Gentleman is being a little pessimistic about aviation and shipping, and about the cost-benefit analysis.