Closing the Gap: The Impact of G20 Climate Commitments on Limiting Global Temperature Rise to 1.5°C

This research paper by the World Resources Institute (WRI) and Climate Analytics evaluates how the climate commitments of G20 countries influence the global goal of limiting temperature rise to 1.5°C, concluding that while current pledges are insufficient, ambitious G20 action could limit warming to 1.7°C.

• Current nationally determined contributions (NDCs) and legally binding net-zero commitments are insufficient, placing the world on a trajectory for 2.4°C of warming by the end of the century.
• If G20 countries implement additional announced 2030 and net-zero pledges that have not yet been formalized in NDCs or binding targets, the projected temperature rise in 2100 could be reduced to 2.1°C.
• If all G20 members align their NDCs with a 1.5°C pathway and adopt mid-century net-zero commitments, global warming at the end of the century could be limited to 1.7°C, closing three quarters of the temperature gap to 1.5°C.
• Reaching the 1.5°C goal requires action beyond the G20, specifically from non-G20 countries and efforts to reduce emissions from shipping and international aviation.
• Achieving these targets depends on developed G20 countries increasing public and private finance for developing countries, specifically to meet and exceed the $100 billion per year commitment.

APA

World Resources Institute (n.d.). Closing the Gap: The Impact of G20 Climate Commitments on Limiting Global Temperature Rise to 1.5°C. https://www.wri.org/research/closing-the-gap-g20-climate-commitments-limiting-global-temperature-rise

Chicago

World Resources Institute. Closing the Gap: The Impact of G20 Climate Commitments on Limiting Global Temperature Rise to 1.5°C. n.d. https://www.wri.org/research/closing-the-gap-g20-climate-commitments-limiting-global-temperature-rise.

Wikipedia

{{cite report |author=World Resources Institute |title=Closing the Gap: The Impact of G20 Climate Commitments on Limiting Global Temperature Rise to 1.5°C |url=https://www.wri.org/research/closing-the-gap-g20-climate-commitments-limiting-global-temperature-rise |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{worldresourcesinstitutendclosing, author = {{World Resources Institute}}, title = {{Closing the Gap: The Impact of G20 Climate Commitments on Limiting Global Temperature Rise to 1.5°C}}, institution = {World Resources Institute}, url = {https://www.wri.org/research/closing-the-gap-g20-climate-commitments-limiting-global-temperature-rise}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }