Kicking the Can Down the Road?

The legacy 'commitment' of the UK government to effectively reduce the country's greenhouse gas emissions to zero by 2050 sounds superficially impressive but the cut-off date is at the far end of what is needed and there is a real possibility that other individuals, who subsequently come to power,  might modify (extending or reducing?) even that aspiration (https://www.theguardian.com/commentisfree/2019/jun/12/the-guardian-view-on-net-zero-emissions-better-late-than-never). One cannot stress too much that the predictions of 'liveability' in the event of  particular increases in mean world temperatures are guesstimates (especially given the fact that there might well be, as yet unidentified tipping points, where changes simply accelerate out of control).