That’s a pity, I had been expecting level or a slight decrease in fossil CO2 (due to economy in China which has 1/3 of emissions), so maybe I was wrong, or maybe it’s just too soon to say (they give error range -0.3% to +1.9%). There’s still 1/6th of 2024 to go, including part of the NH winter whose heating demand varies with weather, most of the raw data that goes into these calculations is likely not so fresh, and chinese economic projections tend to be ‘optimistic’. The rise in LUC CO2 is mainly hangover from tail of El Niño early this year, leading to fires in southern hemisphere. So it’s still possible, if we think monthly, that the global peak was early this year, i.e. in the past.
Of course, they release GCB before the end of the year to try to influence the COP, which makes more sense when the COP is in mid-December (as typical, but not necessary - iirc COP1 was April and COP2 July). But does projected bad news really help motivate the world? I’d emphasise mixed news - some trends up, others down, which shows what difference we can make.