UN warns of greenhouse gas that is 24,000 times more powerful than CO₂

The UN warns about SF6, a greenhouse gas 24,000 times more potent than CO₂, used in high-voltage electrical applications. While currently not a major climate change factor, its usage is increasing with the shift from fossil fuels to electricity. The concentration of SF6 in the atmosphere has tripled since 1995, raising concerns about its long-term impact. Although SF6 is used in closed systems, leaks can occur, prompting the industry to seek alternatives. The WMO emphasizes the need for a careful energy transition to mitigate potential risks. Meanwhile, CO₂ remains the dominant greenhouse gas, with record levels measured in 2025.