Matthew Gidden

Matthew Gidden

@gidden.bsky.social

Scientist studying climate & energy and lover of disc sports. Research Professor @ctrglobsust.bsky.social. Senior Research Scholar @IIASA.ac.at. Personal account; Views are my own.

822 followers99 following28 posts

Matthew Gidden
@gidden.bsky.social

Our findings reinforce other studies (www.tandfonline.com/doi/full/10....) that (a) durability of carbon storage should absolutely be considered in climate strategies and (b) durable CDR (through geologic and mineral storage) is most appropriate for counterbalancing long-lived emissions (e.g. CO2)

tandfonline.comConsidering durability in carbon dioxide removal strategies for climate change mitigationThis Perspective describes the various dimensions of Carbon Dioxide Removal (CDR) durability and interprets them in the context of current policy making. Durability – together with scalability and ...
Matthew Gidden
@gidden.bsky.social

BUT (c) short-lived CDR has a crucial role to play to help reduce net emissions in the short term and counterbalance short-lived emissions (e.g. CH4) especially in the long term

Matthew Gidden reposted

Adrian Odenweller
@adrianodenweller.bsky.social

🚨 New paper: Coupling integrated assessment and energy system models 🚨 Planning future energy systems requires bridging two fundamentally different scales: long-term transformation pathways spanning decades, and short-term power system operations unfolding hour by hour. #EnergySky #PyPSA 🧵

Matthew Gidden
@gidden.bsky.social

Colleagues - the EGU call for abstracts is now open For scholars working on topics related to #CDR - I encourage you to send contributions for our session on "Carbon Dioxide Removal in Climate Mitigation Strategies: Potentials, Limits, and Risks" meetingorganizer.copernicus.org/EGU26/sessio...

egu.euCall for abstracts to the EGU26 General Assembly now open!<p>The EGU General Assembly 2026 (3 - 8 May) will bring together geoscientists from all over the world for an hybrid format meeting, combining both on-site and virtual elements for posters, orals and ...

Matthew Gidden reposted

Daniel Huppmann
@danielhuppmann.bsky.social

How much CO2 can we store in geological deposits to "turn down" the temperature from our fossil-fuel emissions? Matt Gidden et al. assessed the potentials, and the @iiasa.ac.at #ScenarioServices team & @quantstack.bsky.social developed interactive maps! 👉 cdr.apps.ece.iiasa.ac.at/story/pruden...

Matthew Gidden@gidden.bsky.social

Our paper is out today in @nature.com where we assess a Prudent Planetary Limit for Geologic Carbon Storage: www.nature.com/articles/s41...

nature.comA prudent planetary limit for geologic carbon storage - NatureA risk-based, spatially explicit analysis of carbon storage in sedimentary basins establishes a prudent planetary limit of around 1,460 Gt of geological carbon storage, which requires making explicit ...
Matthew Gidden
@gidden.bsky.social

How are national energy and climate planners expecting to utilize it and over what time scales? We suggest a best practice that countries make explicit their planned use of carbon storage in their climate plans as part of their commitments to the #ParisAgreement - especially in the run up to #COP30

Matthew Gidden
@gidden.bsky.social

What our study makes clear: we will need carbon storage at scale to achieve the long-term goal of the #ParisAgreement, but we need to manage it wisely. Reducing emissions as fast as possible today is the clearest and best strategy to avoid saddling future generations with unmanageable risks.

Matthew Gidden
@gidden.bsky.social

This has strong implications for how we establish and regulate #carbon #markets that result in a net-negative future rather than prolonging intrenched #fossil interests and business practices. A mix of policy and market forces are needed to generate more revenue from storing CO2 than emitting it.

Matthew Gidden
@gidden.bsky.social

Which countries, which sectors, and which generations can stake claim to this incredibly valuable resource? We argue carbon storage should be treated as a scarce #intergenerational resource that needs to be managed properly today and essentially forever.

Matthew Gidden
@gidden.bsky.social

We find that profound shifts are needed in firm incentives for extracting and storing CO2. The countries and industries with the most know-how and capacity for storage carbon are the same as those who currently take it out of the ground.

Matthew Gidden
@gidden.bsky.social

What does this mean for global mitigation strategies? #IPCC scenarios that limit temperature well below 2C use carbon storage to mitigate continued use of fossil fuels, deal with GHGs in expensive-to-mitigate sectors, and do #CDR.

Matthew Gidden
@gidden.bsky.social

A key finding of our analysis: if we were to use the most durable carbon storage available to us for #CDR in order to draw temperature down after an #overshoot of #1p5C (where we are headed at full speed), we could at most bring temperatures down by 0.7C

Matthew Gidden
@gidden.bsky.social

Highlights: - new risk-based assessment of CO2 storage potential consistent with #UNFCCC - a cap on how much we can #overshoot the #1p5 limit of the Paris Agreement - most #IPCC scenarios breach the limit by 2200 - clear country winners and losers - all data open access: zenodo.org/records/1565...

zenodo.orgSupplemental Data for Gidden et al 2025: A prudent planetary limit for geologic carbon storageBelow are table captions used in the supplementary data of the manuscript:   Table S1. Global storage volumes considering each geospatial risk consideration layer sequentially, starting from the total...
Matthew Gidden
@gidden.bsky.social

Working with a inderdisciplinary team of experrs in climate science, geology, petroleum engineering, and social science, we ask: where can we reliably, safely, practically and prudently store carbon for millienia?

You are up to date.