Good news never hits the headlines – unless it’s a famous person’s baby – but on Friday the International Energy Agency announced that in 2014, global carbon emissions had ‘stalled’ for the first time outside a recession.

Now first off, this is bloody good news, full stop. If you have contributed in any way, no matter how big or small, pat yourself on the back right now.

Secondly, while I realise one swallow does not make a summer, there’s a constant flow of green infrastructure investment in the pipeline – we’re investing over $200bn a year in renewables as prices plunge – so we should expect to see this stall start to evolve into a downturn.

Thirdly, it’s one in the eye for all those miserablist doomsters who said it would never happen – and those trying to subsume climate change into a wider political ideology. Our first priority is to cut carbon, not to smash capitalism or reject consumer society – although both may reform as we move forward.

So, as I said, big pat on the back all round, then it’s back into the trenches for the next battle!