Carbon dioxide (CO2) emissions from seven operating US liquefied natural gas (LNG) export facilities have jumped to 18 million tonne per year, up 81 per cent since 2019, adding a volume of greenhouse gas to the atmosphere equivalent to that produced by several big coal plants, according to US government data. They could more than double to 45 million tonne per year by the end of the decade. Advocates of LNG argue that the fuel burns cleaner than coal while critics argue that it is unclear if the US gas export boom to Europe is displacing coal or delaying a transition to renewables like solar and wind. LNG exporters, meanwhile, shelved plans to use carbon capture and sequestration (CCS) to reduce emissions, casting doubt on viability of the technology as a large-scale solution to the industry's climate impact.