The Third Way Back on Again at Heathrow?

The saga goes on and on! In February 2020 (just before the country got a major 'hit' fron the Covid-19 pandemic), a judgement was made, blocking the development of a third runway at London's Heathrow airport (already the busiest in the UK). The judgement was made on the basis, that initial, tentative approval for the scheme, had not fully taken into account the UK's legal commitments under the 2015 Paris Climate Accord. The UK had undertaken to do what was needed to keep the global temperature rise to the (arbitrarily 'safe') value of 1.5 degrees Celsius. That would mean greatly reducing the country's 'greenhouse gas' emissions and air travel was a major generator of carbon dioxide. The UK Supreme Court have now overturned that judgement, meaning that the airport can, again, seek a development consent order (https://www.theguardian.com/environment/2020/dec/16/top-uk-court-overturns-block-on-heathrows-third-runway). I can only assume that this overturning, must be on the basis of it being possible for the UK to achieve its Paris Climate Accord commitments by other means. We have had a lot of noise, about the development of a third runway, being a clear illustration of 'Global Britain' being 'open for business'. It can get quite complicated, however, dealing with aircraft emissions. In terms of allocating them to the 'carbon footprint' of countries, does it matter where they are produced (flights commonly cross several countries) or which carriers are producing them (aircraft can be registered under different 'flags'). Aircraft operators are clearly currently over-protected from accountability. Is this the end? The looming climate change crisis, has led the UK making stricter commitments on 'greenhouse gas' emissions. Few people are convinced about the air industry's claim to be rapidly developing technologies for 'greener' flights. It has to be noted that only a small sub-set of the UK population, disproportionately, 'benefit' from using air travel (for the few rather than the many?). The Covid-19 pandemic ought to have taught us that quite a lot of business et cetera can be conducted electronically. The point is, that we need fewer rather than more flights, if we are to counter climate change. If we allow more air flights, we will have to make faster and more stringent cuts in other areas. Perhaps economic and environmental realilities will eventually sink in?