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Climate Change Bill [Lords]

I am grateful to the Minister for giving way. Will she clarify how the Government will track emissions? As she knows, an important decision on Heathrow is coming up. According to the Government, the emissions associated with that policy will include emissions only from outgoing flights, not from incoming flights. Common sense should tell us that extra incoming flights would not be able to land if the airport were not expanded. Will she accept that in Government policy, what is important is the decisionable part of emissions? How will she approach issues such as Heathrow? In such cases, if emissions are not calculated correctly, we will take the wrong decision.