1. Peak emissions
Rich economies peaked decades ago and are now far below their peaks. The large emitters that have not peaked yet account for about half of world emissions.
Western Europe peaked in the 1970s, the post-Soviet bloc in 1990, the US and southern Europe in 2005, Japan in 2013. The UK peaked in 1971 and is 53% below it; France peaked in 1973 and is 51% below.
These are mostly upper-middle-income Asian and Middle Eastern economies, plus India. They are charted separately because their "change since peak" is 0% by construction, and on the scatter they would all stack on one point.
So what. A sourcing country's peak year and its distance from that peak is its direction of travel, and any supply agreement longer than a few years is a bet on that direction. "Everywhere is decarbonising" is not a safe default about the specific country you buy from.
Who acts: procurement and site selection. Cost of getting it wrong: an energy- or carbon-linked cost line that rises across the life of a contract priced on the assumption it would fall.