Johannes Emmerling

Tracking market reactions to COP30 in real-time!
As COP30 unfolds in Brazil (Nov 10-21), our live tracker shows how different stocks respond. Updated daily.

👉 johannesemm.shinyapps.io/HowStocksJud...

Credits: @robinlamboll.bsky.social (Imperial College) & @johannesemm.bsky.social (CMCC)
#COP30

Posted a short blog post with updated data (and public repo with data) of current state of Econ job market:

paulgp.com/2025/10/08/j...

1. In a GREAT paper (why isn't it published??), Anthoff, Dennig & @johannesemm.bsky.social show that most IAMs have a hidden goal of a uniform price and define Negishi weights to arrive at that goal. Yet, carbon price should grow at the discount rate (at least under a carbon budget constraint)...

Evaluation Summary and Metrics: "A Welfare Analysis of Policies Impacting Climate Change" Evaluation of "A Welfare Analysis of Policies Impacting Climate Change" for The Unjournal.

Evaluation Summary and Metrics: "A Welfare Analysis of Policies Impacting Climate Change"

Agreed. Socioeconomically optimal values have been found at roughly 83%. And even then, political and social implications need to be anticipated and addressed.
NB: Even the 55% target has not yet been digested. We found people believe the EU will only manage 43% by 2030. More Credibility is needed.

Huge thank to the lead author Rik van Heerden
and co-authors: Oreane Y. Edelenbosch, Vassilis Daioglou, @thomaslegallic.bsky.social , Luiz Bernardo Baptista, Alice Di Bella, Francesco Pietro Colelli, @johannesemm.bsky.social , Panagiotis Fragkos, Robin Hasse, Johanna Hoppe [...]

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Results: By 2050, direct CO₂ emissions drop ~65% in buildings & ~70% in transport (vs. current policies).

Demand-side strategies provide climate benefits!

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🚀 Want to meet the Paris Agreement goals? Reducing energy demand in buildings & transport is key!

🔎 Our latest study quantifies how demand-side strategies complement low-carbon supply-side solutions.

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The 2024 state of the climate report: Perilous times on planet Earth We are on the brink of an irreversible climate disaster. This is a global emergency beyond any doubt. Much of the very fabric of life on Earth is imperiled

To occupants of the Blue Sky, I recently arrived from X & here sharing our nontechnical 2024 State of the Climate Report. Together let's raise our voices on climate. doi.org/10.1093/bios... tagging my distinguished coauthors @michaelemann.bsky.social @rahmstorf.bsky.social @naomioreskes.bsky.social

Synthesis of evidence yields high social cost of carbon due to structural model variation and uncertainties | PNAS Estimating the cost to society from a ton of CO2—termed the social cost of carbon (SCC)—requires connecting a model of the climate system with a re...

Excited to announce a new @pnas.org publication on the Social Cost of Carbon. We integrate evidence from the literature and expert survey to provide an SCC distribution inclusive of both parametric and structural uncertainties. Our mean 2020 value is $283 per ton CO2
www.pnas.org/doi/10.1073/...

Goodbye X. Hello Blue Sky.

🆕 study: Climate change and #inequality are deeply intertwined. Keeping global temperatures below 1.5°C can reduce long-term inequality increase by 2/3, researchers show. Well-designed policies can help stabilize climate & promote economic inclusion: www.nature.com/articles/s41...

1/5 Our new paper in @JEEM_tweets analyzes how rising temperatures affect different income groups, finding poorer households are more vulnerable. 🌡️📊 @CmccClimate @M_E_Gilli @F_Granella @matteo_calca Open access paper:

1/6 New study compares net zero pathways for USA and EU by 2050, analyzing 28+ energy models. Key findings on electrification, emissions, and renewable energy deployment. Based on @StanfordEng EMF-37 and @ecemf_2020 🇺🇸🇪🇺🧵 @CmccClimate

Join us for ECEMP 2024! 😎 The conference focused on key modelling insights for Climate and Energy policies. Checkout the 8th HYBRID edition, online and in Bruxelles! www.ecemf.eu/ecemp/ecemp-...
ECEMP is organized in collaboration with DGs at the European Commission and EU funded projects.

Join us for ECEMP 2024! 😎 The conference focused on key modelling insights for Climate and Energy policies. Checkout the 8th HYBRID edition!
ECEMP is organized in collaboration with DGs at the European Commission and EU funded projects.

good point, first post on Bsky, still learning :-) reposting

What climate targets perform best under a multidimensional welfare criterion (extended
#HDI
)? w/ U. Kornek & S. Zuber we assess the IPCC's AR6 scenarios based on seven dimensions. C2 (1.5 °C with overshoot) performs best. doi.org/10.1016/j.ec...
#capableclimate
#net0prisma
#CmccClimate

What climate targets perform best under a multidimensional welfare criterion (extended #HDI)? W/ Kornek & Zuber we assess the IPCC's AR6 scenarios based on seven dimensions. C2 (1.5 °C with overshoot) performs best. @capableclimate #net0prisma @CmccClimate

Unequal climate impacts on global values of natural capital - Nature Country-level changes in economic production and the value of non-market ecosystem benefits show unequal impacts on the global values of natural capital resulting from climate-change-induced shifts in...

What unfolds when ecosystems shift across national borders due to climate change?

Thrilled to share our latest paper in Nature, which delves into the consequences of these climate-driven biome migrations on human well-being.

www.nature.com/articles/s41...

New paper: CMCC researchers look into the interlinkages between climate change and global economic inequality. Some key takeaways for impacts of climate policies, scenarios for the global Gini index, social justice, and acceptance @CmccClimate (1/5)

Inequality and Climate Change - two important and interlinked challenges for soceity. Very happy that we finally finished our empirical paper with @M_E_Gilli @F_Granella @matteo_calca on the impact of climate change on inequality within countries. Three important findings:

This year's ECEMP conference kick offs tomorrow! After 9 month of preparing this exciting conference on European #Energy and #Climate issues within the @ECEMF_2020. Register and join online for free here:

A vicious cycle of global warming, climate extremes, higher energy demand (esp. for cooling), thus further emissions and warming makes early-on mitigation even more important. Check out our new paper with @FranPieC @edecian @jackjackk1

#Savethedate October 5-7, 2022 ECEMP @ECEMF_2020 Conference
Acting on the ambitions to a #netzero EU: roadblocks, challenges, and opportunities
The deadline for submission will be June 20, 2022
More info in the coming weeks

The EU's ambitious #FitFor55 package deserves great attention (see, e.g., the detailed comments by @Tagliapietra_S). But how fair is the target itself globally? Based on works led by @Hel1vs and @nicolejvdb @nlenvironagency @EIEEorg et al., the #EU target for 2030 is..

#BeyondGDP is an important concept. Can #happiness or subjective well-being based on surveys provide an indicator at the macro level? We argue it might, finding strong economic, environmental and social explanatory variables drivers. and SSP simulations.

Si diffonde il negazionismo climatico

Large uncertainty around sea-level rise and the potential for #adaptation. Interesting discussions about the macroeconomic costs due to SLR. And what is the limit to adaptation to #ClimateChange? @lolow225 @micheldenelzen @zoivrontisi @IIASAVienna @nlenvironagency @CmccClimate

Inequality and the Social Cost of Carbon | Journal of the Association of Environmental and Resource Economists: Vol 6, No 2