Really proud of this work, which went from an idea back in August 2022, to a published piece this week! With co-authors Damien Irving, @janzika.bsky.social, and Jonathan Gregory, we explored the reduced impact of aerosols on our climate system: agupubs.onlinelibrary.wiley.com/doi/10.1029/... - ThreadSky

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taimoorsohail.bsky.social • 455 days ago

Really proud of this work, which went from an idea back in August 2022, to a published piece this week! With co-authors Damien Irving, @janzika.bsky.social, and Jonathan Gregory, we explored the reduced impact of aerosols on our climate system:

https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL105374

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taimoorsohail.bsky.social•455 days ago

In this work, we diagnosed the change in aerosol-driven ocean heat uptake efficiency in decadal time windows and depth and temperature layers. The main findings are:

taimoorsohail.bsky.social•455 days ago

1) The ocean heat uptake efficiency (how much cooling occurs in the ocean, per degree of surface cooling) due to human-released aerosols has dropped by 43% since 1980. Meanwhile, the ocean heat uptake efficiency of human-released greenhouse gasses has continued to climb.

taimoorsohail.bsky.social•455 days ago

2) The drop in aerosol- driven heat uptake efficiency has been centred around the tropical and sub-tropical ocean, while the high latitudes (i.e., Southern Ocean and North Atlantic) have continued to cool with the same efficiency as pre-1980s

taimoorsohail.bsky.social•455 days ago

3) We trace the drop in aerosols-driven ocean heat uptake efficiency to air-sea heat fluxes, which show reduced cooling in the tropics and sub-tropics since the 1980s.

taimoorsohail.bsky.social•455 days ago

This work suggests that the relative role of aerosols in cooling our climate is weakening since the 1980s, and may enable accelerated, unchecked heating due to GHGs. Check out the full text if interested!

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