The international meeting, which is being hosted by the UK in partnership with Italy, is billed as the most important since the Paris Agreement was set out in 2015 and is expected to attract up to 30,000 people to Scotland’s biggest city.
It was originally due to take place in November 2020, but was postponed due to the Covid-19 pandemic.
And despite its rescheduling, a question mark has continued to hang over the final decision on whether to hold meetings face-to-face or move them to the virtual world.
But now an army of construction workers, diggers and trucks has descended on the banks of the Clyde, with building beginning in earnest at the Scottish Events Campus.
A grid of metal support structures has already started to take shape and some roads surrounding the area, which is home to the SSE Hydro and the iconic Armadillo concert hall, have been closed to allow work to proceed.
The government’s COP26 team were being tight-lipped about what the new structures would be used for, so I can only speculate at this point.
But now, after all the uncertainty over the past year and a half, and with only 66 days left before the talks kick off, it’s reassuring to see some physical signs that it will actually take place as billed.
It’s not possible to underestimate the importance of the coming negotiations and resulting actions, which will determine the future for mankind and the planet.
How the 197 countries plan to reduce greenhouse gas emissions to levels sufficient to curb global temperature rise and prevent runaway climate change will be set down.
But success in Glasgow will also hang on other big issues, such as climate finance and carbon trading.
Let hope the sentiments of the UK’s COP26 team come true.
A spokesperson said: “Climate change is threatening lives and livelihoods around the world every day, so the world must urgently come together to agree action to protect our planet.
"Glasgow will be remembered as the city where this happened.”