Ukrainian delegates hope their presence at COP27 will keep the war fresh in people's minds and spark broader discussions about the world's reliance on fossil fuels.
A combination of full storage, lower demand and mild weather, among other factors, has eased concerns of a spike in heating and power prices — for now.
Both Ukraine and Russia claim emissions from Crimea and other annexed territories as their own. The fight will expand to U.N. climate talks next month.
The leaks in the Nord Stream under the Baltic Sea heightened fears of shortages because of the clash with Russia, and showed how vital infrastructure could be at risk.