Shivika Mittal

Influence of individual models and studies on quantitative mitigation findings in the IPCC Sixth Assessment Report - Nature Communications The paper analyses the impact of the uneven representation of models and studies on key mitigation findings in the IPCC Sixth Assessment Report. It finds that the model with the most scenarios has a considerable influence on several findings.

New paper with @glenpeters.bsky.social in Nature Communications today. We show how models and studies with a lot of scenarios in the IPCC scenarios database have a large impact on key findings, including emissions reductions, net-zero GHG year, and coal, gas, and oil consistent with 1.5°C.

📢 Out now in the September 2025 issue of #JAERE! 📢
"Industrial Water Pollution and Agricultural Production in India" by Nick Hagerty ( @hagertynw.bsky.social ) and Anshuman Tiwari.
Read it here: buff.ly/oAalYIW
📈📉 #Econsky

Opportunities for decentralised solar power to improve reliability, reduce emissions and avoid stranded assets - Nature Communications National grid-connected solar mini-grids can reduce electricity costs, increase reliability and reduce carbon emissions. Improvements in grid reliability carry minimal financial risk to mini-grid...

Here is the link to this paper www.nature.com/articles/s41...

India Lowers Tax on Renewables in Steps to Fight Trump Tariffs India more than halved a tax rate on domestic sales of renewable-energy equipment, as part of a raft of measures to shore up local consumption and shield the economy from punitive US tariffs.

India more than halved a tax rate on domestic sales of renewable-energy equipment, as part of a raft of measures to shore up local consumption and shield the economy from punitive US tariffs

It’s not just fossil fuels at risk of becoming stranded — without good policies, even decentralized renewables could be left behind. We have looked at this issue in this paper.

#LowCarbon #MiniGrid assets face risk of asset stranding, with the expansion of or improvement in reliability of national grids. Good #Policy to ensure these assets can interconnect can reduce this risk, + improve reliability, #emissions and costs! Read the paper here: www.nature.com/articles/s41...

The study uses #energy system #modelling to explore different scenarios of national grid/mini-grid reliability in #India, and how under different #scenarios, national grid connected mini-grids can offer a promising solution providing clean, affordable and reliable power.
‪@powerforall.bsky.social

Sharing our new paper in #NatureCommunications on solar-based mini-grids interconnecting with national grids can boost reliability, cut costs + emissions, and reduce the risk of asset stranding, co-led by @benwinchester.bsky.social & with @shivmit.bsky.social, + others! @natureportfolio.nature.com

In info graphic of six IAMs

The DIAMOND project has made an important milestone: the first draft release of six open integrated assessment models (IAMs) that are emblematic in both scientific and policy processes. Now is the chance to contribute and provide feedback!
preview.mailerlite.com/y7x9l4x1r1

I never thought I would be spending my time explaining the scientific method to one of the most well funded research institutions in the history of humanity, but here we are.

But it was so uplifting to see so many brilliant scientists provide context to every point in this thing. You guys rock.

If you need help finishing the final products of your food-related experiments in the future, please let me know.

Chart: Trump’s war on wind energy will hit these states hardest Wind developers are grappling with a barrage of hostile policies from the Trump administration that have put up to $317 billion of planned investment at…

"President Donald Trump’s crusade against wind energy is intensifying — and it could come with some serious costs. As much as $317 billion in lost investment, to be exact, per new analysis from research firm Cleanview." www.canarymedia.com/articles/win... via @danmccarthy.bsky.social 🔌💡

Graph showing: Share of non-fossil generation in India's total grid generation

India has just announced that they have reached their NDC target of 50% non-fossil electricity generation capacity share. Good to celebrate progress, but generation share is still about 25%, and has been fairly stable for several years. 1/3
robbieandrew.github.io/india/

Norway's greenhouse gas emissions in 2024 A detailed look at Norway's greenhouse gas emissions in 2024.

ICYMI

DIAMOND webinar: The past and future of scenarios in the IPCC - Diamond Scenarios of future greenhouse gas emissions are central to the Intergovernmental Panel on Climate Change (IPCC) assessment process, shaping our understanding of mitigation challenges and informing gl...

DIAMOND is holding a webinar tomorrow, June 17, for researchers engaged in climate scenario development + assessment, especially those working with integrated assessment models ( #IAMs ), energy-economy models, & broader scenario exercises.
climate-diamond.eu/diamond-webi...
#climatediamond

Read the full paper here! iopscience.iop.org/article/10.1... #ClimateChange #ScenarioAnalysis #IntegratedAssessmentModels #Feasibility

Our paper presents a new, open-source, quantitative, multidimensional framework designed to explore and evaluate these scenarios systematically. It can be used to assess scenarios globally or regionally.

Large collections of #climate action #scenarios are crucial for guiding #policy, but can be challenging to extract insights from. It's helpful to understand the relative feasibility and also desirability for society of scenarios across a range of relevant dimensions 🧭 (2/8)

An exploration and evaluation framework for climate change mitigation scenarios with varying feasibility and desirability - IOPscience An exploration and evaluation framework for climate change mitigation scenarios with varying feasibility and desirability, Beath, Hamish, Mittal, Shivika, Lamboll, Robin, Rogelj, Joeri

🚨Excited to share my new paper published in ERL: "An exploration and evaluation framework for climate change mitigation scenarios with varying feasibility and desirability", co-authored with @shivmit.bsky.social @robinlamboll.bsky.social @joerirogelj.bsky.social tinyurl.com/yh3rspns (1/8)

The @climatediamond.bsky.social project is meeting @cicero.oslo.no in Oslo for its General Assembly.

Find out more about the project here climate-diamond.eu

Three figures of emissions, showing emissions, rate of change, and acceleration. The point is that acceleration means there needs to be an decceleration phase

“Acceleration” has become increasingly prevalent in discourse on climate mitigation. What does it mean?

It often means "step up" climate action in the short term, which is overly simple.

Acceleration must end, which requires thinking about policies over time.

journals.plos.org/climate/arti...

1/

Do you think battery electric vehicle (BEV) sales will take off in Japan, or will fuel cell electric vehicles (FCEV) be more successful in Japan ( given their investment in hydrogen production)?

is it with or without a temporary overshoot?

The EU has released its latest GHG emission inventory, with data up to 2023.

The good news, GHG emissions continue a downward trend, currently 37% below 1990 levels.

The bad news, a significant downward revision of land-use removals (LULUCF).

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METEORv1.0.1: A novel framework for emulating multi-timescale regional climate responses Abstract. Resolved spatial information for climate change projections is critical to any robust assessment of climate impacts and adaptation options. However, the range of spatially resolved future sc...

We're excited about finally getting this one out in discussion. METEOR is a lightning fast time-evolving spatial pattern response model which can emulate any CMIP model, representing separate slow and fast climate responses to different climate forcers.
egusphere.copernicus.org/preprints/20...

from senator @chrismurphyct.bsky.social chris murphy's recent floor speech, via @davidcorn.bsky.social ...

link.motherjones.com/public/38940...

Half of world’s CO2 emissions come from 36 fossil fuel firms, study shows Researchers say data strengthens case for holding firms to account for their contribution to climate crisis

This is not a surprise. We know what causes CO₂ to increase in the atmosphere and we know how to stop climate change. We just don’t want to.

"Playing card" suggest how they’re skillfully navigating the emotions and interests of both investors and citizens, almost as if they’re engaged in a high-stakes game where every move counts.

Europe’s energy information problem This Policy Brief makes recommendations on how the European energy information problem can be addressed

🚨 Exceptionally important paper. Accessible, accurate, and timely data is needed to make informed energy policy decisions.

From my colleagues @bmcwilliams.bsky.social, @gzachmann.bsky.social, and @tagliapietra.bsky.social.

www.bruegel.org/policy-brief...