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The United States is currently on track to cut its GHG emissions by ** percent from 2005 levels by 2030, to *** billion metric tons of carbon dioxide equivalent (GtCO₂e). Prior to the passage of  IRA, BIL, CHIPS, and major EPA rules, the U.S. was set to emit *** GtCO₂e by the same year.

Meanwhile, in a scenario where the U.S. shows continued climate leadership, it is projected the world's second-largest GHG emitter would cut its emissions by ** percent by 2030 to **** GtCO₂e, and reach net zero by 2050. However, in a scenario where climate and energy policies outlined in Project 2025 are implemented, U.S. GHG emissions would increase above the trajectory under current policies to *** GtCO₂e. This would represent a difference of ** percentage points between the two policy scenarios. As of 2022, U.S. GHG emissions had been reduced by roughly ** percent, relative to 2005 levels.