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The Impact of U.S. Re-engagement in Climate on the Paris Targets

Journal Article · · Earth's Future
DOI:https://doi.org/10.1029/2021ef002077· OSTI ID:1864139
 [1];  [1];  [2];  [3];  [4];  [4];  [5];  [5];  [6];  [6];  [5]
  1. Basque Centre for Climate Change (BC3), Leioa (Spain)
  2. Basque Centre for Climate Change (BC3), Leioa (Spain); Univ. of the Basque Country (UPV/EHU), Leioa (Spain)
  3. Imperial College London (United Kingdom). Grantham Inst.
  4. Center for International Climate Research (CICERO), Oslo (Norway)
  5. Univ. of Maryland, College Park, MD (United States). Center for Global Sustainability
  6. World Resources Inst., Washington, DC (United States)
+ Show Author Affiliations
The Paris Agreement is meant to bind together international efforts to reduce temperature increase to well-below 2ºC. While so far, ambitions in many signatories of the Paris Agreement have been insufficient to achieve this goal, optimism prevailed in the second half of 2020, with several major emitters enhancing their mitigation targets and a change of leadership in the United States (U.S.). Expectations are high for an active re-engagement in climate action by the Biden Administration, which immediately re-entered the Paris Agreement and announced a net-zero goal for 2050. Apart from the impact that U.S. federal re-engagement could have on national greenhouse gas emissions levels, there are several channels through which U.S. re-engagement in climate action could positively impact ambitions in other countries. This Policy Forum explores the impact of renewed U.S. engagement on national emissions, global emissions and end-of-century temperatures by comparing five combinations of climate ambitions in the U.S. and the rest of the world through an integrated assessment model.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
European Union Horizon 2020; Spanish Ministry of Economic Affairs and Digital Transformation; Spanish Ministry of Science and Innovation; USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1864139
Report Number(s):
PNNL-SA-165167
Journal Information:
Earth's Future, Journal Name: Earth's Future Journal Issue: 9 Vol. 9; ISSN 2328-4277
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

54 ENVIRONMENTAL SCIENCES
Paris Agreement
U.S. NDC
climate action