That sounds wrong. Quickly googling, https://www.c2es.org/content/international-emissions/ https://www.c2es.org/content/international-emissions/ says the US is

That sounds wrong. Quickly googling, https://www.c2es.org/content/international-emissions/ https://www.c2es.org/content/international-emissions/ says the US is around 13% of global greenhouse gas emissions, and https://www.eia.gov/energyexplained/energy-and-the-environment/where-greenhouse-gases-come-from.php https://www.eia.gov/energyexplained/energy-and-the-environme... says gas is around 44% of U.S emissions. so that random WSJ comment is pretty hard to believe.