An even larger source is on the way. A sprawling LNG facility under construction near Lake Charles, about 40 miles east of the Sabine Pass terminal, is projected to produce substantially more emissions — eclipsing every LNG export terminal built in the United States so far and exceeding the dozens of LNG projects proposed for the next decade, according to a Verite News analysis of state and federal records.

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The terminal, called Louisiana LNG, is owned by Woodside Energy, Australia’s biggest oil and gas producer. Construction costs for the terminal are expected to reach nearly $18 billion, which would place the project among the largest foreign investments in Louisiana’s history, according to the state’s Republican governor, Jeff Landry. At the project’s groundbreaking ceremony in September, Landry called the occasion “a great day for Louisiana and an unbelievable day for America.”

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Despite assurances that natural gas would bring environmental benefits, many experts who study greenhouse gas emissions say the LNG boom will likely worsen global warming. In 2023, 170 scientists signed a letter urging President Joe Biden to halt the expansion of LNG terminals, warning that the growing use of liquefied natural gas will “put us on a continued path toward escalating climate chaos.”

LNG is at least 33 percent worse for the climate than coal when energy use from processing and shipping is taken into account, according to a Cornell University study.