At the moment, there is much talk of sustainable development, but the current trend is still on the F-1 'business as usual' scenario. The graph shows the difference between that and the One Planet Economy F-4 scenario.
The fastest growing impact is that of low cost flights from Manchester and Liverpool: at current growth rates, air travel would consume the regions's entire carbon budget by 2050.
Overseas holidays by NW residents cause about 10 times the impact of inward visitors to the region, (and rising).