The top 2 lines are for 2023 and 2024.
There are some interesting things about this graph.
1) The steady increases in temps from the bottom to the top.
2) The huge gap between the 2023 red line and the rest.
3) And, finally, the continued high temps represented by the black line of 2024.
You can see the steady small increases over time from 1850 to the present. Then, in 2023, there was a preposterous increase over all the rest. Half a degree! That large increase has gobsmacked and frightened scientists who don't know why there such a huge increase. Other scientists have said that the consensus was too cautious and that there were large increases coming. Some models have inflection points where temps just take off. The consensus has been that there would be no inflection or only a slight one. Many scientists pointed out that there was an El Nino in 2023. That was what they pinned their explanations of the increase on. In El Nino events, the ocean overturning brings heat that is trapped in deeper waters to the surface. And as a result, there's an increase in global atmospheric temps. When the El Nino disappeared in the winter, scientists thought, temps would return to normal. Then, 2024 came, the El Nino left, and temps continued to be record high. And not just by a small amount.