Ozone-depleting substances contributed significantly to global warming and Arctic sea ice loss
Recent climate modeling studies confirm that ozone-depleting substances acted as powerful greenhouse gases, contributing substantially to global warming and Arctic sea ice loss during the late 20th century.
The claim is specific, empirical, and directly tested by climate modeling studies in the literature. Papers [2] and [8] provide quantitative evidence demonstrating that ozone-depleting substances played a major role in both global warming and Arctic sea ice loss. There is no evidence in the provided set refuting this claim.
M. Sigmond, L. M. Polvani, J. C. Fyfe, C. Smith, J. N. S. Cole, M. England. Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century. 2023. https://doi.org/10.1029/2022GL100563
The study quantifies that ozone-depleting substances were responsible for 30% of global warming, 37% of Arctic warming, and 33% of summertime Arctic sea ice loss from 1955 to 2005.
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Lorenzo Polvani, Michael Previdi, Mark England, Gabriel Chiodo, Karen Smith. Substantial twentieth-century Arctic warming caused by ozone-depleting substances. 2020. https://doi.org/10.5194/egusphere-egu2020-3961
The research demonstrates that ozone-depleting substances contributed substantially to twentieth-century Arctic warming and sea ice loss primarily via direct radiative forcing.
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