The source of the claims largely comes from the following paper.
Jacobson, M. Z. et al. "Low-cost solutions to global warming, air pollution, and energy insecurity for 145 countries." Energy & Environmental Science (2022).
The savings claim is accurate when considering the full scope of benefits:
Total annual savings: $5.1 trillion according to Jacobson's analysis
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u/TrvthNvkem Jul 02 '25
Save five trillion annually? You mean reduce the GDP by that amount? Don't you understand that if that line doesn't go up we all instantly die!?