Claire Zarakas's Avatar

Claire Zarakas

@czarakas.bsky.social

Climate scientist. Thinking about interactions between land, climate, and society & applying research to advance climate action Schmidt Science Fellow @carbonplan.org and @UCIrvine. Atmospheric Sciences PhD @UW. Opinions my own.

509 Followers  |  575 Following  |  4 Posts  |  Joined: 25.10.2023  |  2.002

Latest posts by czarakas.bsky.social on Bluesky

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Why Billionaire Wendy Schmidt Is โ€˜Doubling Downโ€™ On Climate Science In The Age Of Trump How billionaire Wendy Schmidt became a crucial funder of science and climate research amid political rollbacksโ€”backing ocean discovery, data access, and storytelling.

Philanthropy is vital in advancing the science needed to address global challenges. Our co-founder @wendyschmidt.bsky.social is an inspiring example. Thank you for your unwavering support for science @schmidtocean.bsky.social @schmidtsciences.bsky.social www.forbes.com/sites/elisab...

18.09.2025 19:15 โ€” ๐Ÿ‘ 5    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Record wildfire smoke kills more people each year than car crashes. Itโ€™s about to get worse. The past six summers have been the smokiest on record. New research shows that smoke could become the costliest consequence of climate change for Americans.

It's not your imagination: Wildfire smoke in the U.S. has dramatically worsened since 2019. According to a new study, it's already killing 41,000 people a year - and it's poised to get much worse.

new from me @johnmuyskens.bsky.social and @sadbumblebee.buzz

www.washingtonpost.com/climate-envi...

18.09.2025 15:25 โ€” ๐Ÿ‘ 376    ๐Ÿ” 171    ๐Ÿ’ฌ 12    ๐Ÿ“Œ 21
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Our paper "Sensitivity to Data Choice for Indexโ€Based Flood Insurance" is now published in Earthโ€™s Future!

We show that the data chosen to trigger indexโ€‘based flood insurance payouts can change everything.

agupubs.onlinelibrary.wiley.com/doi/full/10....

#ClimateResilience #FloodInsurance

16.09.2025 16:18 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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I'm happy to share a paper in Science Advances that makes the case for a weak land carbon sink, drawing upon JPL and Chloris biomass time series. To close the budget with a net land sink of 0.8 Pg C/y from 2000-2019, we propose increases in the ocean sink and decreases in fossil fuel emissions.

10.09.2025 20:01 โ€” ๐Ÿ‘ 13    ๐Ÿ” 13    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Right then...

A quick review of the DOE's new 'critical review' of climate science. Whether it's worth a formal community response - I'm still not sure, but here's my first thoughts

/thread/

30.07.2025 14:32 โ€” ๐Ÿ‘ 191    ๐Ÿ” 112    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 23
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Ecological acclimation: A framework to integrate fast and slow responses to climate change Read the free Plain Language Summary for this article on the Journal blog.

A synthetic paper about fast vs. slow responses of ecological systems to changing climate, explaining how and why those responses can shift (even in sign) over time. Examples across scales and subdiscplines (population genetics, ecosystem ecology). besjournals.onlinelibrary.wiley.com/doi/10.1111/...

25.06.2025 17:31 โ€” ๐Ÿ‘ 37    ๐Ÿ” 13    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐ŸšจCalling U.S.-based climate experts! The newly formed U.S. Academic Alliance for the @ipcc.bsky.social is now accepting nominations for the Seventh Assessment Report.๐ŸŒ

Join a global network of scientists shaping the future of climate action.

Apply by April 4: buff.ly/hDrBH1F

#IPCC #AGU

20.03.2025 12:05 โ€” ๐Ÿ‘ 111    ๐Ÿ” 68    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 8
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My hard copies of the BCI book have arrived! 98 chapters of plant and ecosystem science. "All" I need now is a comfy chair, a pot of tea, and no distractions for a week.
Downloadable here: smithsonian.figshare.com/articles/boo...

31.03.2025 18:24 โ€” ๐Ÿ‘ 12    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thanks for thinking of me @kdorheim.bsky.social! I'll sign up ๐Ÿ˜

24.03.2025 21:49 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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โ€œWhat is CDR?โ€ is the wrong question โ€“ CarbonPlan We summarize the ongoing debate around what โ€œcountsโ€ as CDR, highlighting the trade-offs of each proposed definition. We suggest an alternative set of questions that can provide a more meaningful guid...

Thereโ€™s an ongoing debate over what should โ€œcountโ€ as COโ‚‚ removal. In a new commentary with @hausfath.bsky.social, we break down key points of contention, proposed definitions, and why no definition offers a perfect path forward. (1/5)

carbonplan.org/research/def...

25.02.2025 19:11 โ€” ๐Ÿ‘ 28    ๐Ÿ” 7    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2

"Others found the financial enticements to leave insulting. 'I donโ€™t work here for the fucking money,' said one longtime agency employee who works on air pollution. 'I work here because I believe in it, and I want to serve the public.'"

06.02.2025 14:49 โ€” ๐Ÿ‘ 16    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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GHG emissions from the German LULUCF sector have gone from around neutral to a large source!

The change is almost entirely in forest land.

"Due to the years of drought, around two million hectares of trees have been damaged and some have died completely."
www.thuenen.de/en/thuenen-t...

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05.02.2025 11:53 โ€” ๐Ÿ‘ 89    ๐Ÿ” 43    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 13
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The extent of Storm #Eowynโ€™s impact on forests cannot be seen properly from the ground. This drone footage taken today above a stand I visited in Meath shows how wind hardened trees around the edge remain standing while the centre has been flattened.

30.01.2025 18:34 โ€” ๐Ÿ‘ 173    ๐Ÿ” 58    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 8

it's down for planned maintenance until monday

23.01.2025 17:51 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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New data added to the Compliance Users tool โ€“ CarbonPlan We updated the Compliance Users tool to include the latest available cap-and-trade program data about who used which offsets during the programโ€™s fourth compliance period.

We maintain a tool that shows how companies use offsets to comply with Californiaโ€™s cap-and-trade program. The tool is now updated with the latest available data, providing a complete picture of offset use in the first decade of the program โ€” from 2013 through 2023. ๐Ÿงช

carbonplan.org/blog/complia...

19.12.2024 21:40 โ€” ๐Ÿ‘ 11    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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One challenge of using National Forest Inventory data for GHG estimates of forest carbon uptake is that only a share of the inventory plots are sampled each year, meaning the last 5 years or so is a guestimate.

In Sweden, it looks like forest uptake has stabilised, but...

1/

18.12.2024 08:18 โ€” ๐Ÿ‘ 25    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

The meeting is hybrid, so join us online from anywhere for free! Tutorial for running emissions-driven CESM is in person only, and it would be great to see you in Boulder. We will also make all of the materials from the tutorial public.

18.12.2024 16:53 โ€” ๐Ÿ‘ 9    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

We have a new preprint out on land-atm interactions in wet regions!

17.12.2024 16:50 โ€” ๐Ÿ‘ 8    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
CDRXIV CDRXIV is a new open access platform for sharing preprints and data related to carbon dioxide removal (CDR).

Carbon Dioxide Removal research needs a central, multidisciplinary hub. Weโ€™re building it at cdrxiv.org. Read and download others' work, explore CDR pathways and topics, and help the platform grow by submitting your CDR research!

06.12.2024 23:02 โ€” ๐Ÿ‘ 22    ๐Ÿ” 15    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2
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Plant physiological responses to CO2 #fertilization can make natural climate solutions (e.g., reforestation, avoiding #deforestation) less efficient through climate feedback from stomatal closure. @newphyt.bsky.social

nph.onlinelibrary.wiley.com/doi/10.1111/...

14.11.2024 18:21 โ€” ๐Ÿ‘ 32    ๐Ÿ” 17    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Really excited for this flat10MIP preprint to come out! In addition to @benmsanderson.bsky.social's points below, I want to add what I think is coolest about these experiments. /Thread/

15.11.2024 17:18 โ€” ๐Ÿ‘ 22    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
An image of President Biden behind a podium announcing the release of the 5th National Climate Assessment. Arati Prabhakar,
Director of the White House Office of Science and Technology Policy, and Allison Crimmins, Director of the National Climate Assessment, are standing behind the President and smiling.

An image of President Biden behind a podium announcing the release of the 5th National Climate Assessment. Arati Prabhakar, Director of the White House Office of Science and Technology Policy, and Allison Crimmins, Director of the National Climate Assessment, are standing behind the President and smiling.

One year ago, the 5th National Climate Assessment was released!
Below is a thread highlighting resources in and around the assessment that you might find useful.
nca2023.globalchange.gov

14.11.2024 18:07 โ€” ๐Ÿ‘ 95    ๐Ÿ” 28    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 4
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Crediting challenges when carbon removal comes with avoided emissions โ€“ CarbonPlan Some carbon removal projects also result in avoided emissions. This is good for the climate, but can pose challenges for individual projects that are trying to earn carbon removal credits.

Projects that aim to remove carbon by tweaking existing industrial processes can end up avoiding some emissions as well. Thatโ€™s a good thing for the climate โ€” but it can pose challenges when trying to support these projects through the sale of carbon removal credits.
carbonplan.org/research/cdr... ๐Ÿงช

14.11.2024 14:40 โ€” ๐Ÿ‘ 9    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Opinion | Climate Science Canโ€™t Keep Up With the Warming Planet We need more timely updates in response to the rapid changes to the climate.

We have an opinion piece at the NYT on the need to operationalize some aspects of climate science. ๐Ÿงช

Thoughts welcome!

(Gift link)
www.nytimes.com/2024/11/13/o...

13.11.2024 11:20 โ€” ๐Ÿ‘ 322    ๐Ÿ” 108    ๐Ÿ’ฌ 37    ๐Ÿ“Œ 11
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Analysis: Global CO2 emissions will reach new high in 2024 despite slower growth - Carbon Brief Carbon dioxide (CO2) emissions from fossil fuels and cement will rise around 0.8% in 2024, reaching a record 37.4bn tonnes of CO2 (GtCO2)

The global carbon budget 2024 is out !

Highlights covered in Carbon Brief.
@hausfath.bsky.social

www.carbonbrief.org/analysis-glo...

13.11.2024 00:04 โ€” ๐Ÿ‘ 89    ๐Ÿ” 56    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 5
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The 2024 Global Carbon Budget was just released! Unfortunately despite hopes emissions might peak, both fossil CO2 and total CO2 emissions reached new record highs. I cover details w/ Pierre Friedlingstein (@PFriedling) at Carbon Brief: www.carbonbrief.org/...

13.11.2024 00:40 โ€” ๐Ÿ‘ 436    ๐Ÿ” 209    ๐Ÿ’ฌ 14    ๐Ÿ“Œ 25
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We need carbon removal in addition to deep emissions reductions to get to net-zero. But as we show in a new study the durability of removals is key to ensure net-zero actually stabilizes global temperatures and meets our climate goals: www.nature.com/artic...

11.11.2024 15:00 โ€” ๐Ÿ‘ 157    ๐Ÿ” 44    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 4
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Land Processes Can Substantially Impact the Mean Climate State Land processes substantially impact the climatological mean state terrestrial temperature and precipitation Land parameters influence climate predominantly through changing evapotranspiration rat...

Land matters for climate! We show how things we don't know about land change surface climate (a lot!) using 36 plausible simulated versions of Earth. Led by Claire Zarakas and just published in Geophys. Res. Lett.: doi.org/10.1029/2024...

04.11.2024 16:22 โ€” ๐Ÿ‘ 21    ๐Ÿ” 8    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

I made a list (or 'starter pack') of Land Surface Modelers, because that's the kind of thing one does on #bluesky. Please tell your friends and also (v. important) TELL ME if you want to be added. We need more people here! go.bsky.app/Mw4tJ3t

10.11.2024 21:58 โ€” ๐Ÿ‘ 85    ๐Ÿ” 44    ๐Ÿ’ฌ 29    ๐Ÿ“Œ 1

@czarakas is following 20 prominent accounts