scienceshaina.bsky.social
Climate scientist and critical physical geographer. Works on climate and sea level projections, corporate accountability, climate litigation, and climate justice.
Queer, disabled, vegan🌱🌈 She/her
Views expressed here are mine
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If your #AAG2025 session participants are comfortable with the session being recorded so it is accessible to asynchronous attendees please make that change as well. Recording is only available for hybrid and virtual sessions.
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Hybrid and virtual conference sessions are also absolutely crucial in this extremely dangerous political climate. We have already seen researchers attempting to join other conferences who were turned away at the border. www.theguardian.com/us-news/2025...
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Hybrid sessions are important for making conferences accessible for folks who don't attend in the physical conference space due to caretaking duties, lack of travel funding, the absence of infectious disease mitigation measures, a desire to minimize travel emissions, or for other reasons. #AAG2025
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If you are presenting at #AAG2025 in a session that is solely in Detroit please ask the organizers if they would be willing to make it hybrid so virtual and asynchronous participants can attend.
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Thanks for sharing our new work!
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Thank you, Henri!
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The list is available here: carbonmajors.org/Entities
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Lead author of the report, Shaina Sadai, shares what the planet might have been like if the world—and these major polluters—had acted in a timely manner to address the harms of fossil fuels.
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Thank you! Yes, I've been able to log in today as well.
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Thank you for sharing our new work!
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The press release for our new Carbon Majors climate attribution paper is now up here: www.ucs.org/about/news/s...
Breakdown in thread above 🧪
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Tagging some of my favorite climate journalists! @amywestervelt.bsky.social @katearonoff.bsky.social @insideclimatenews.org @emorwee.bsky.social @bberwyn.bsky.social
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For folks interested in the climate justice implications of long-term sea level rise, especially as it relates to the Paris Agreement, check out my prior work here! agupubs.onlinelibrary.wiley.com/doi/10.1029/... /end
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This work is the result of my Hitz Fellowship at @ucsusa.bsky.social! It relied on the amazing Carbon Majors dataset from @influencemap.bsky.social!
There are more materials related to this work to explore here! ucs.org/resources/tracing-tides 11/n
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Thank you to the amazing author team: my research partner @miranganathan.bsky.social, UCS advisors Delta Merner, Kristina Dahl, Rachel Licker, & @brendaekwurzel.bsky.social, and MAGICC developers Alexander Nauels and Zebedee Nicholls. 10/n
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“Immediate and near-term mitigation is crucial to meeting global climate goals and reducing long-term impacts, such as sea level rise, which will evolve over centuries. This study underscores that the past actions of fossil fuel and cement producers will have consequences long into the future.” 9/n
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Higher future emissions will have higher long-term SLR. By comparing different historical counterfactuals run with various future emissions scenarios we find that long-term attribution to past emissions is robust regardless of future emissions trajectories... 8/n
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Thermal expansion and ice sheet mass loss are the two primary drivers of sea level rise. Delays in greenhouse gas emissions mitigation will come with long-term consequences due to the long response time of the oceans and crysophere. blog.ucs.org/shaina-sadai... 7/n
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Our research shows that products produced by a relatively small number of industrial fossil fuel producers have played a large role in altering global climate. It also shows that emissions from just a few decades are projected to have impacts to global average sea levels for centuries to come... 6/n
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🌡️🌊If the Carbon Majors stopped FF production in 1990 we find present day surface air temperature rise would have been 0.65-0.9°C above preindustrial and CO2 concentrations would be below 370 ppm. The difference in projected long term sea level rise is 0.16-0.35 m …5/n
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🌡️🌊If the Carbon Majors stopped fossil fuel production in 1854 or 1950 we find present day surface air temperature rise would have been ~0.39-0.66°C above preindustrial and CO2 concentrations below 350 ppm. The difference in projected long term sea level rise is 0.26-0.55 m ...4/n
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⌛ We assessed the potential impacts of phasing out fossil fuels at points in history using 3 counterfactual scenarios with Carbon Majors emissions stopping in 1854, 1950 (when some companies were aware of the harms of their products), or 1990 (the start of international climate action efforts)…3/n
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We find that emissions traced to the products produced by the Carbon Majors have contributed
🌡️ 37%–58% of present-day globally averaged air temperature rise and
🌊 ~24-37% of present sea-level rise (SLR).
Their past emissions through 2020 alone are projected to add 0.26-0.55m of SLR by 2300… 2/n
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you can be contagious with measles four days before symptoms present themselves. ~40% of Covid cases are asymptomatic. just because you don’t feel sick no longer means you aren’t sick. you could be spreading something that might be fine for you but could kill someone else. care about this.