[et_pb_section fb_built=”1″ _builder_version=”4.27.5″ custom_margin=”0px||||false|false” custom_padding=”0px||0px||false|false” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.9″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” hover_enabled=”0″ border_width_bottom=”1px” border_color_bottom=”#58e3ff” global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n
Article adapted from the original source:<\/strong> Considering sectoral warming and cooling emissions and their lifetimes can improve climate change mitigation policies<\/a> (published July 30, 2025)<\/p>\n Authors\/organizations:<\/strong> B. Buma, I. Ocko, B. Walkowiak, Y. Xu, M. Lackner, S. S. Sartzetakis, A. Alpert, and S. Dhungel. Environmental Defense Fund (New York) and Texas A&M University. Published in npj Climate and Atmospheric Science (Nature Portfolio), in partnership with King Abdulaziz University’s CECCR. DOI 10.1038\/s41612-025-01131-8.<\/p>\n Rights:<\/strong> Creative Commons Attribution – NonCommercial – NoDerivatives 4.0 International (CC BY-NC-ND 4.0), license of the published version. This text is an original analysis by WasteOlas: the study’s numerical data are used, tabulated, and commented on, with author attribution and a link to the publication. No text, tables, or figures from the source are reproduced or translated.<\/p>\n Visual credit:<\/strong> illustration taken from the main source.<\/p>\n [\/et_pb_text][et_pb_text _builder_version=”4.27.8″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n What if part of the warming we are already experiencing remains invisible? A study published in npj Climate and Atmospheric Science quantifies, sector by sector, what 33 substances emitted since 1750 are actually doing to the climate: some warm, others cool, and they do not persist in the atmosphere at the same rate at all. The results reshuffle the usual hierarchy of responsibilities and point to a much faster lever for action than anticipated.<\/p>\n One-Third of Warming is Masked, and the Mask is Fading<\/strong><\/p>\n Warming emissions accumulated since 1750 alone account for approximately 2.18 \u00b0C (\u00b1 0.14), of which 1.25 \u00b0C is from long-lived species and 0.93 \u00b0C from short-lived species. CO2 accounts for 47% of this gross warming, methane 29%. Conversely, cooling species, primarily aerosol precursors, remove approximately 0.83 \u00b0C (\u00b1 0.15), with 68% of that attributed to sulfur dioxide alone. The net balance, approximately 1.35 \u00b0C (\u00b1 0.21) in 2022, thus conceals one-third of warming already emitted but temporarily offset.<\/p>\n This compromise is unstable: aerosols disappear in a few days to weeks, while CO2 acts for centuries. Cleaning the air, which is perfectly justified for public health, mechanically unmasks warming that has already occurred. The authors also note that the surge in temperatures in 2023 and 2024 is partly explained by this phenomenon.<\/p>\n Sectors with the Highest CO2 Load Also Self-Cool<\/strong><\/p>\n The study highlights a strong inverse correlation (p = 0.001, r\u00b2 = 0.91): the higher the share of CO2 in a sector’s warming, the more that sector co-emits cooling species. Here is what this looks like for the period 1750-2022, in terms of average surface temperature variation.<\/p>\n