reaffirmed their commitment 26 and 28 percent from 2005 levels by 2025 its commitments formal U.S. commitment to the Paris agreement U.S. and China pledged to join the agreement together overall emissions by 26-28 percent by 2025 26 and 28 percent from 2005 levels by 2025 ratification of the Paris climate accord committed committed cut emissions between 26 and 28 percent 26 to 28 percent below their 2005 levels committed Scientific American 26 and 28 percent from 2005 levels by 2025 U.S. and China Formally Commit to Paris Climate Accord 26 and 28 percent from 2005 levels by 2025