The Committee on Climate Change (CCC) report (275 pages) published today today (2/5/19) makes clear that aviation must be included in the zero emissions target. And that international credits (offsets) must not be used to wriggle out of this obligation.
It is clear from the governnment’s own figures that a third runway at Heathrow is inconsistent with even the current target of 80% cuts by 2050, let alone 100% cuts. (See concise report.) We should not be surprised therefore that judges Holgate and Hickinbottom put out their judgement on Heathrow expansion just before the CCC report. Their judgement said (by implication of course, not explicitly) that a third runway could go ahead irrespective of such climate considerations.