Heathrow third runway incompatible with net zero without aviation industry funding clean tech

At the intersection of economic ambition and planetary constraint, Britain's climate advisers have issued a conditional warning: Heathrow's third runway may proceed, but only if the aviation industry — not the public — bears the full cost of its own decarbonisation. The caveat is significant, because the conditions required do not yet exist, and the technology upon which they depend barely does either. Parliament, not the advisers, holds the final word, and the government has already signalled its desire to build.