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Giacomo Grassi

@giacgrassi.bsky.social

Scientist @EU_Commission's Joint Research Centre. Forests, carbon and climate in the science/policy interface. Member #IPCC task force Bureau #AR7. Views mine.

810 Followers  |  101 Following  |  119 Posts  |  Joined: 18.11.2024
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Posts by Giacomo Grassi (@giacgrassi.bsky.social)

Postdoctoral researcher on Reconciliation of land fluxes between global models and national greenhouse gas inventories (m/f/x)

๐Ÿ“ฃ Postdoc Position: Land Carbon Fluxes & GHG Inventories
job-portal.lmu.de/jobposting/b...

๐ŸŒ Hosted by the Ludwig-Maximilians-Universitรคt Mรผnchen, includes a up to 2 years at the Joint Research Centre (Italy),

โžก๏ธ Unique opportunity to work at the scienceโ€“policy interface.

#ClimateScience

26.02.2026 10:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
EU Forest Observatory Web site created using create-react-app

๐ŸŒ Where to access the data
๐Ÿ”— EU Forest Observatory: forest-observatory.ec.europa.eu/carbon/fluxes
๐Ÿ”— Online repository: zenodo.org/records/1790...

Huge thanks to Joana Melo for leading this work!

26.02.2026 10:01 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐ŸŒณ The Hub centers on national GHG inventories and compares them with global datasets (e.g., Global Carbon Budget, Global Forest Watch), applying a โ€œtranslationโ€ approach to align definitions across communities.

It support efforts under the IPCC to increase confidence on land use emissions.

2/

26.02.2026 10:00 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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The LULUCF Data Hub: translating global land use emissions estimates into the national GHG inventory framework Abstract. Global estimates of anthropogenic land use CO2 fluxes from bookkeeping models and dynamic global vegetation models, as well as those derived from Earth observations (EO), can differ widely f...

๐ŸŒณ Puzzled by land-use emissions data?

โžก๏ธ The LULUCF Data Hub description paper now in discussion:
essd.copernicus.org/preprints/es...

๐ŸŒ The Hub is an open-access platform that compiles, harmonizes, and visualizes country-level COโ‚‚ fluxes from land use, land-use change and forestry (LULUCF).

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26.02.2026 09:58 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Chi รจ Lysenko, e cosa cโ€™entra con Trump, lโ€™IPCC e la democrazia?

Ne abbiamo scritto nel Il Sole 24 Ore con il filosofo della scienza Matteo Motterlini.

Uscire dall'IPCC non significa sottrarsi al riscaldamento globale, cosรฌ come gettare il termometro non fa sparire la febbre.

16.01.2026 20:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Perchรฉ la nostra mente รจ lโ€™ostacolo piรน grande nella lotta al cambiamento climatico Il cambiamento climatico non รจ solo una crisi ambientale. รˆ, prima di tutto, una crisi cognitiva. รˆ da questa tesi, tanto semplice quanto scomoda, che prende

www.climalteranti.it/2026/01/05/p...
@giacgrassi.bsky.social

08.01.2026 14:02 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Anno nuovo, clima vecchio - Il Post Bilancio della rotta del cambiamento climatico dieci anni dopo lโ€™Accordo di Parigi e un mese dopo la COP30

Allโ€™inizio del nuovo anno, puรฒ essere utile chiedersi a che punto siamo nella crisi climatica.

รˆ una sfida che ci chiede di scegliere insieme la rotta giusta, prima che la fisica decida per noi.

Ne abbiamo scritto ne Il Post con il filosofo Matteo Motterlini

www.ilpost.it/2026/01/03/g...

03.01.2026 19:43 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Proud to be European โค๏ธโค๏ธ

08.12.2025 16:34 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

4/ The captain doesnโ€™t know the icebergโ€™s depth or how the hull would react. Similarly, temperature projections are uncertain. But uncertainty isnโ€™t ignorance and shouldnโ€™t excuse inaction. It should drive us to act on what we can control: the shipโ€™s turning radiusโ€”our greenhouse gas emissions.

23.11.2025 18:06 โ€” ๐Ÿ‘ 25    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

3/ The ship hasnโ€™t completed its turn (orange: emissions still rising), but change has begun. Compared to ten years ago, the worst risks (red) are less likely. Recent pledges lower risk further (yellow), yet we remain in dangerous waters. To reach safer zones, the turn must accelerate (green).

23.11.2025 18:05 โ€” ๐Ÿ‘ 17    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

2/ Imagine a transatlantic liner at full speed: thatโ€™s the global economy. Emissions set its course. Scientists spot a huge iceberg and raise the alarm. After long discussions, just like at climate conferences, the danger is acknowledged and the collective decision is made to steer the ship ...

23.11.2025 18:03 โ€” ๐Ÿ‘ 17    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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With a mixed-results at COP30 - i.e. good intentions but no concrete plans for the โ€œtransition away from fossil fuelsโ€ - donโ€™t give up.

Letโ€™s remember the progress made since the Paris Agreement and the options ahead of us. Thatโ€™s the message of the image below

23.11.2025 17:58 โ€” ๐Ÿ‘ 91    ๐Ÿ” 42    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 5
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๐Ÿ“ฃ PRESS RELEASE

#IPCC is calling for the nominations of authors for the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage

Read the PR ๐Ÿ‘‰ www.ipcc.ch/2025/11/19/c...

Submissions close 12 December 2025

๐Ÿงต 1/3

19.11.2025 16:22 โ€” ๐Ÿ‘ 9    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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#IPCC agrees on the scientific content of the remaining methodology report in the seventh assessment cycle and 2026 workplan for the three key climate reports in Lima, ๐Ÿ‡ต๐Ÿ‡ช Peru.

๐Ÿ”— www.ipcc.ch/2025/10/31/p...

๐Ÿ“ธ ENB - IISD - Anastasia Rodopoulou

31.10.2025 15:33 โ€” ๐Ÿ‘ 17    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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PresaDiretta 2025/26 - Missione Terra, quel che resta dei ghiacci - 12/10/2025 - Video - RaiPlay Biomass, il satellite che studia la materia vivente presente nelle foreste. Cryosat, il satellite che da 15 anni monitora la fusione dei ghiacciai: grazie ai suoi dati, il progetto Glambie che riunisc...

Che la causa del cambiamento climatico siamo noi รจ in realtร  una buona notizia.

Spiego il perchรฉ nella parte finale (min 17:30) di questa bella puntata di Presa Diretta.

www.raiplay.it/video/2025/1...

13.10.2025 18:04 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Quando la scienza si piega alla politica: il negazionismo climatico nel rapporto del Dipartimento dellโ€™Energia USA Il 23 luglio 2025, il Dipartimento dellโ€™Energia (DOE) degli Stati Uniti ha pubblicato un documento intitolato A Critical Review of Impacts of Greenhouse Gas E

#USpolitics
#AGWdeniers

@giacgrassi.bsky.socialโ€ฌ e @caserinik.bsky.social fanno a polpette il rapporto dei 5 negaioli per il DOE. Sono stati piรน veloci del solito, ma gli argomenti di quei "mercanti di dubbi... sono giร  stati piรน volte confutati anche su Climalteranti."

06.08.2025 12:17 โ€” ๐Ÿ‘ 2    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

thanks to the great team of co-authors, including Michel den Elzen, Zuelclady M.F. Araujo Gutierrez, Will Lamb, Nicklas Forsell, Joana B. Melo, Simone Rossi, Malte Meinshausen, Sandro Federici, Matthew GIDDEN, Kimon Keramidas, Anu Korosuo

04.08.2025 10:08 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

๐Ÿค” However, land use remains a blind spot in tracking progress under the #ParisAgreement, mainly due to inconsistencies between global models and country-reported data.

๐Ÿ’ก It is crucial that future #GlobalStocktakes include comparisons between modeled and country-provided net land-use emissions.

2/

04.08.2025 10:03 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Land remains a blind spot in tracking progress under the Paris Agreement due to lack of data comparability Communications Earth & Environment - Discrepancies exist between data used in countriesโ€™ greenhouse gas inventories and modelled benchmarks for the Paris agreement, according to an...

What is the contribution of land use to countries' climate pledges?

๐Ÿ–‹๏ธ A new paper led by Rosa Roman-Cuesta explores this question and offers a way forward.

๐ŸŒฒ The study finds that land use makes up a quarter of global 2030 mitigation pledges โ€” mostly reliant on external support.

rdcu.be/eydhU

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04.08.2025 10:01 โ€” ๐Ÿ‘ 10    ๐Ÿ” 4    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Securing the forest carbon sink for the European Unionโ€™s climate ambition Nature - Actionable research recommendations are outlined to improve the monitoring and modelling of forest resources and their carbon sink, and to better inform forest management decisions and the...

read-only text here rdcu.be/eyycF

01.08.2025 13:18 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Securing the forest carbon sink for the European Unionโ€™s climate ambition Nature - Actionable research recommendations are outlined to improve the monitoring and modelling of forest resources and their carbon sink, and to better inform forest management decisions and the...

rdcu.be/eyycF

01.08.2025 13:17 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Securing the forest carbon sink for the European Unionโ€™s climate ambition Nature - Actionable research recommendations are outlined to improve the monitoring and modelling of forest resources and their carbon sink, and to better inform forest management decisions and the...

rdcu.be/eyycF

01.08.2025 13:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

which is your email?

01.08.2025 10:19 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Securing the forest carbon sink for the European Unionโ€™s climate ambition - Nature Actionable research recommendations are outlined to improve the monitoring and modelling of forest resources and their carbon sink, and to better inform forest management decisions and the European Gr...

Why is the European forest carbon sink declining?
How science can help reversing this trend?

A perspective paper in Nature discusses these questions, highlighting the importance to better monitor forest resources and their resilience.

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

31.07.2025 20:46 โ€” ๐Ÿ‘ 21    ๐Ÿ” 9    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 2
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Improving land-use emission estimates under the Paris Agreement Nature Sustainability - Climate science and national emissions reporting communities have historically used different definitions and methods for anthropogenic land-based carbon removals. As the...

Full-text view-only HERE: rdcu.be/el87m

15.05.2025 13:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Improving land-use emission estimates under the Paris Agreement Nature Sustainability - Climate science and national emissions reporting communities have historically used different definitions and methods for anthropogenic land-based carbon removals. As the...

Full-text view-only: rdcu.be/el87m

15.05.2025 10:30 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thanks to the stellar co-authors, including @glenpeters.bsky.social , @pepcanadell.bsky.social , @gidden.bsky.social and others, and to all participants of the IPCC Expert Meeting.

7/7

15.05.2025 10:26 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This is relevant for forest-rich nations, where โ€œnaturalโ€ sinks often play a major role in net-zero pledges.
Policymakers need to grasp these implications and adjust their climate ambition accordingly

6/7

15.05.2025 10:18 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

We also urge the scientific community to generate these inventory-aligned estimates and scenarios, and to explore the implications.

Key takeaways: under inventory definitions, the remaining carbon budget is smallerโ€”and reaching net-zero COโ‚‚ alone is not enough to stop warming.

5/7

15.05.2025 10:15 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0