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High-ambition climate action in all sectors can achieve a 65% greenhouse gas emissions reduction in the United States by 2035

Journal Article · · npj Climate Action
 [1];  [1];  [2];  [3];  [1];  [1];  [4];  [2];  [1];  [5];  [2];  [1];  [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Univ. of Maryland, College Park, MD (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  3. Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)
  4. Global Energy Monitor, Covina, CA (United States)
  5. Peking University, Beijing (China)
+ Show Author Affiliations
Under the next cycle of target setting under the Paris Agreement, countries will be updating and submitting new nationally determined contributions (NDCs) over the coming year. To this end, there is a growing need for the United States to assess potential pathways toward a new, maximally ambitious 2035 NDC. In this study, we use an integrated assessment model with state-level detail to model existing policies from both federal and non-federal actors, including the Inflation Reduction Act, Bipartisan Infrastructure Law, and key state policies, across all sectors and gases. Additionally, we develop a high-ambition scenario, which includes new and enhanced policies from these actors. We find that existing policies can reduce net greenhouse gas (GHG) emissions by 44% (with a range of 37% to 52%) by 2035, relative to 2005 levels. The high-ambition scenario can deliver net GHG reductions up to 65% (with a range of 59% to 71%) by 2035 under accelerated implementation of federal regulations and investments, as well as state policies such as renewable portfolio standards, EV sales targets, and zero-emission appliance standards. This level of reductions would provide a basis for continued progress toward the country’s 2050 net-zero emissions goal.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
National Research Foundation of Korea (NRF); USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2566841
Report Number(s):
PNNL-SA--192911
Journal Information:
npj Climate Action, Journal Name: npj Climate Action Journal Issue: 1 Vol. 3; ISSN 2731-9814
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

54 ENVIRONMENTAL SCIENCES
GCAM-USA
Decarbonization