I HAD a dream, or some will say a nightmare, about the delay in repairing Bradford's wonderful City Hall. It was about it being a positive decision, rather than the contractor going into administration and ceasing to trade.

It would be internationally significant if the council was debating where to place large information screens on the exterior of City Hall despite its considerable architectural merit and Grade One listed status.

I know most folk aren't as interested in the environment as I am, or as concerned about climate change, but we all need to have a better understanding and one way to improve this is for it to stare us straight in the face. Using such a beautiful building in this way will dismay many but they need to consider what's going to happen to their children and grandchildren later this century.

Understanding precisely how the science works isn't important as the only vital figure folk need to know is the stable climate limit for atmospheric CO2, and the progress the world is making to achieve it. We need to reduce it from its current and continually growing high level down to about 350 parts per million (ppm) – 350 is the target to remember.

Each screen would have a reminder on it of this 350 figure for comparison with the figure for a recent week and date, and also those for a year, and ten years before. For example the global figures for the weeks beginning September 11 were: 2016 - 401.35ppm, 2015 - 397.37 ppm and 2006 - 379.08 ppm.

Those uncomfortable with numbers would notice that the level of CO2 is still growing but others would appreciate that the annual rate of change is also increasing as well, just the opposite of what's needed if we are to bring the level down to 350.

And the sooner the better as unintentionally, but selfishly and nationally, global behaviour is encouraging all the storms, floods, and rising sea levels that destroy people and property, as well as increasing the problems of drought and food supply that drive millions of people to move. It's a recipe for warfare.

It's not just up to us in the UK, but we should do our bit, each of us, prompted by City Hall taking the initiative, and international acclaim, and we can certainly help if we just drove more slowly, flew less often, used LED bulbs, recycled more, turned the thermostat down and planted trees.

We need the problem in our face, and we should now take the practical approach – advertise the facts publicly and boldly, and where better than the view across Centenary Square.

That'll show Leeds!