for subheadings: "A surplus that dwarfs most economies" and "The G20's role in global trade" and "What happens next". We need to translate those as well.
First h2: "A surplus that dwarfs most economies" -> "Et overskudd som overgår de fleste økonomier" or "Et overskudd som forminsker de fleste økonomier" but "dwarfs" means makes them look small. So "Et overskudd som overgår de fleste økonomier" might be better: "Et overskudd som overgår de fleste økonomier" (surpasses) but actually "dwarfs" means makes them seem small. So "Et overskudd som får de fleste økonomier til å se små ut" but that's wordy. Maybe "Et overskudd som overskygger de fleste økonomier" (overshadows). I'll use "Et overskudd som overskygger de fleste økonomier" - that conveys the meaning.
Second h2: "The G20's role in global trade" -> "G20s rolle i global handel"
Third h2: "What happens next" -> "Hva skjer videre" or "Hva nå?" I'll use "Hva skjer videre"
Now we need to ensure the content is wrapped in tags. The original content is inside ...