//….climate change is a real issue and requires some kind of response even if you disagree about what that should be.//
Indeed. And “what should be done” is wide ranging, from almost nothing, in the case of the UK because its emissions are two pennorth of diddly squat, through to quite a lot in the case of India and China because they are the world’s greatest sources of emissions and show little or no sign of doing anything significant. There’s a whole lot in between but this government seems intent in bankrupting people, businesses and the economy in a reckless drive towards a ridiculous goal that they call “net zero.” A debate is necessary to see whether people really want that in the same way that a debate was necessary to see whether the country wanted to continue its membership of the EU (where, similarly, there was also near unanimity among the main parties).
The undoubted fact is that the UK could reduce its emissions to zero tomorrow and it would make precisely no difference whatsoever to the perceived problem. Bankrupting the country for no apparent reason other than looking good on the world stage doesn’t seem particularly smart by any measure. If the countries that are making the greatest contribution to the problem somehow need such a gesture to “encourage” them to do what they need to do, it might be questioned whether their hearts are really in it (and I think I know the answer to that question).