Editing IPCC:AR6/WGI/Chapter-5 (section)

==== 5.6.3.3 Consequences of SRM on other Biogeochemical Cycles ====

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SAI is found to reduce global average surface ozone concentration ( [[#Xia--2017|Xia et al., 2017]] ) mainly as a result of aerosol-induced reduction in stratospheric ozone at polar regions, resulting in reduced transport of ozone from the stratosphere ( [[#Pitari--2014|Pitari et al., 2014]] ; [[#Tilmes--2018|Tilmes et al., 2018]] ). The reduction in surface ozone, together with alteration to ultraviolet (UV) radiation, would have important implications for vegetation response ( [[#Xia--2017|Xia et al., 2017]] ). A modelling study shows that sea salt aerosol injection for MCB would reduce hydroxyl (OH) concentration and increase CH <sub>4</sub> lifetime, and hence, have potential implications for surface ozone pollution ( [[#Horowitz--2020|Horowitz et al., 2020]] ). It has also been reported that the use of SAI to limit global mean warming from 2°C to 1.5°C would reduce fire weather in many areas ( [[#Burton--2018|Burton et al., 2018]] ).

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