Greenhouse gas emissions reduction pathways in the U.S. 2000-2035, by scenario

The United States submitted a strengthened Nationally Determined Contribution (NDC) in 2021 which set the target of reducing domestic emissions by 50 to 52 percent below 2005 levels by 2030. This target covers all sectors (including LULUCF) and greenhouse gases. When excluding LULUCF, reductions would be around 29 to 38 percent below 2000 levels, giving a domestic target of between 4,544 and 5,240 MtCO₂ by 2035. Under current policies and actions, it is projected that the U.S. would miss its proposed reduction target, therefore additional policies will need to be implemented. Currently, U.S. domestic climate action is rated between "insufficient" and "almost sufficient". The U.S. aims to be net-zero by 2050.

美国于2021年提交了加强版的国家自主贡献(NDC)计划，该计划设定了到2030年将国内排放量较2005年水平降低50至52%的目标。此目标涵盖所有部门（包括土地利用、土地利用变化和森林（LULUCF））及温室气体。排除LULUCF后，减排量将大约在2000年水平以下29至38%，从而在2035年实现国内减排目标，目标值介于4,544至5,240百万吨二氧化碳。根据现行政策和措施，预计美国将无法达到其拟定的减排目标，因此需要实施额外的政策。目前，美国的国内气候行动被评为‘不足’至‘几乎足够’。美国旨在2050年实现净零排放。