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Posts by Tim Osborn

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Decades of increased emissions from forest-fuelled BECCS - Nature Sustainability Governments are considering subsidies for bioenergy with carbon capture and storage fuelled by wood from existing forests. However, a transparent model estimates that this will probably increase emiss...

Many govts hope capturing carbon from power plants burning wood will cause "negative emissions." New Nature Sust. paper today finds this likely increases emissions for decades, generates no negative emissions within 150 years, and increase electricity costs ~3.5-fold.
www.nature.com/articles/s41...

1 day ago 136 70 4 13
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Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) in University of East Anglia | UEA View details and apply for this Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) vacancy in University of East Anglia. Faculty of Science School of Environmental Sciences ...

Full details of the vacancy: Sir Anthony Habgood Professor of Climate & the Environment

A fantastic research‑focused position within our friendly, vibrant & interdisciplinary climate research community at UEA

Happy to chat informally if you’d like to know more

vacancies.uea.ac.uk/vacancies/21...

3 weeks ago 8 9 1 0
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RealClimate: A reflection on reflection RealClimate: Confirmation bias and a profound lack of curiosity mark the latest ABC (Anything But Carbon) contrapalooza in DC this week and a decade-old albedo error trips them up. I occasionally dip ...

By me. A decade-old error in a paper trips up the contrarians.

RealClimate: A reflection on reflection www.realclimate.org/index.php/ar...

1 week ago 37 14 2 1

There's no end (or beginning) to my talents 🙃

1 week ago 2 0 0 0
View of Start Bay from Start Point

View of Start Bay from Start Point

Start Bay: Fantastic setting (+weather) for the micrometeorology day on our first-year undergraduate field course. @ueaenv.bsky.social

1 week ago 7 1 1 0
A map of the United Kingdom showing a provisional maximum temperature of 26.5 degrees Celsius in Kew Gardens, London on 8th April 2026

A map of the United Kingdom showing a provisional maximum temperature of 26.5 degrees Celsius in Kew Gardens, London on 8th April 2026

For some, today has been exceptionally warm for the time of year🌡️

For context, temperatures above 26°C are very uncommon in early April. Indeed, today has been the second warmest day on record during the first half of any April 📈⚠️

1 week ago 101 52 8 17
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NASA once touted the diversity of Artemis II's astronauts. Now? Not so much The Artemis II mission crew contains four people -- including one woman and one Black man, both of whom will be the first on a lunar mission. But NASA hasn't been talking about these milestones much.

The #ArtemisII crew includes the first person of color, the first woman, and the first non-American to (hopefully) fly beyond Earth orbit. You won't hear much on this from NASA, which has rolled back DEI initiatives over the past year.

www.npr.org/2026/03/31/n...

2 weeks ago 716 225 20 4

Exciting climate news from UEA @uniofeastanglia.bsky.social:

Vacancy: Professor of Climate & Environment.

UEA joins the Met Office Academic Partnership

Andy Jordan (Tyndall) appointed to UK Climate Change Committee

Bill Collins (Berkeley) is moving to UEA as Professor of AI for Climate Science

3 weeks ago 16 6 2 0
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I guess you rarely have that problem with either of your names? 😀

3 weeks ago 3 0 0 0
UEA further boosts its climate expertise through key appointments and strategic partnership The University of East Anglia’s reputation for climate science has been further enhanced by a new partnership with the UK Met Office, a key committee appointment and a leading US scientist set to arri...

And more details on the other UEA climate developments mentioned above:

www.uea.ac.uk/about/news/a...

@ueaenv.bsky.social @climateuea.bsky.social

3 weeks ago 0 0 0 0
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Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) in University of East Anglia | UEA View details and apply for this Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) vacancy in University of East Anglia. Faculty of Science School of Environmental Sciences ...

Full details of the vacancy: Sir Anthony Habgood Professor of Climate & the Environment

A fantastic research‑focused position within our friendly, vibrant & interdisciplinary climate research community at UEA

Happy to chat informally if you’d like to know more

vacancies.uea.ac.uk/vacancies/21...

3 weeks ago 8 9 1 0

Exciting climate news from UEA @uniofeastanglia.bsky.social:

Vacancy: Professor of Climate & Environment.

UEA joins the Met Office Academic Partnership

Andy Jordan (Tyndall) appointed to UK Climate Change Committee

Bill Collins (Berkeley) is moving to UEA as Professor of AI for Climate Science

3 weeks ago 16 6 2 0

I don't think people fully appreciate how apocalyptic things are for US science. I haven't had any new funding since 2024, but I'm still ok since typical grants are for three years. This means next year I will be completely out of funding and will have to fire everyone in the lab. It's not great.

3 weeks ago 5375 2389 43 79
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Wikipedia Bans AI-Generated Content “In recent months, more and more administrative reports centered on LLM-related issues, and editors were being overwhelmed.”

after much deliberation and giving AI the benefit of the doubt, Wikipedia editors have had enough of AI slop. New policy bans LLM generated content, periodt www.404media.co/wikipedia-ba...

3 weeks ago 8309 2312 106 273
Graph of daily sea surface temperature averaged from 60°S to 60°N. 2026 has just edged into record territory. Data from NOAA OISST v2.1

Graph of daily sea surface temperature averaged from 60°S to 60°N. 2026 has just edged into record territory. Data from NOAA OISST v2.1

Graph of daily sea surface temperature averaged from 60°S to 60°N. 2026 has just edged into record territory. Data from ERA5.

Graph of daily sea surface temperature averaged from 60°S to 60°N. 2026 has just edged into record territory. Data from ERA5.

Almost-global-average sea-surface temperatures are creeping up to record levels again and we’re still in La Niña (according to NOAA).

There’s some uncertainty though as you can see from these two datasets..

3 weeks ago 18 15 2 0

I just resigned from NASA. It breaks my heart to leave, but I’ve become convinced the best path forward is to do the best science I can, and that can’t be here anymore. I’m still in love with the promise of those four magic letters. Ad astra per aspera, and remember: Earth is the only good planet.

4 weeks ago 24176 3847 619 206
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Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) in University of East Anglia | UEA View details and apply for this Sir Anthony Habgood Professor of Climate and the Environment (ATR1739) vacancy in University of East Anglia. Faculty of Science School of Environmental Sciences ...

Hey academic climate folks, great new chaired position at @uniofeastanglia.bsky.social working w/ the folks at the Climatic Research Unit in Norwich UK:
vacancies.uea.ac.uk/vacancies/21...
(h/t @timosbornclim.bsky.social)

4 weeks ago 40 28 1 1
Reduced carbon outflow from a Floridian mangrove estuary up to two years after a hurricane - Communications Earth & Environment Mangroves in Florida show a substantial and sustained decrease in dissolved organic and inorganic carbon outwelling following the passage of a category 3-4 hurricane, according to analysis of a high-r...

I had a time series of mangrove carbon export for many years, and then it was hit by Hurricane Irma. The result is some pretty interesting science.

People want mangroves to take up more CO₂ from the atmosphere, but with climate change and more extreme storms, they're probably going to do less. 🧪

4 weeks ago 93 28 2 1
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A staircase diagram with six levels rising from bottom-left to top-right. Each level on the left represents a stage in the causal chain of climate change, connected by a dashed arrow to a corresponding intervention on the right. From bottom to top: Root Drivers (economic system, fossil finance, colonial and historical structures, geopolitics) connects to Transformative System Change (economic restructuring, post-colonial redress, geopolitical shifts); Human Activities (consumption and production patterns) connects to Socio-technical and Behavioural Change (electrification, behaviour change, market incentives); Energy and Land Systems connects to Infrastructure Transition (renewables, grids, land-use redesign); Emissions connects to End-of-pipe Controls (CCS); Atmospheric GHG Concentrations connects to Carbon Dioxide Removal (including NETs); Earth's Energy Imbalance connects to Geoengineering (SRM). A diagonal arrow runs across the full diagram from Structural/Preventative at the bottom-left to Reactive/Compensatory at the top-right.

A staircase diagram with six levels rising from bottom-left to top-right. Each level on the left represents a stage in the causal chain of climate change, connected by a dashed arrow to a corresponding intervention on the right. From bottom to top: Root Drivers (economic system, fossil finance, colonial and historical structures, geopolitics) connects to Transformative System Change (economic restructuring, post-colonial redress, geopolitical shifts); Human Activities (consumption and production patterns) connects to Socio-technical and Behavioural Change (electrification, behaviour change, market incentives); Energy and Land Systems connects to Infrastructure Transition (renewables, grids, land-use redesign); Emissions connects to End-of-pipe Controls (CCS); Atmospheric GHG Concentrations connects to Carbon Dioxide Removal (including NETs); Earth's Energy Imbalance connects to Geoengineering (SRM). A diagonal arrow runs across the full diagram from Structural/Preventative at the bottom-left to Reactive/Compensatory at the top-right.

1/ Yesterday @wmo-global.bsky.social made Earth's Energy Imbalance a headline #climate indicator for the first time.

I think this could be a significant reframing of climate discourse, and it's worth paying close attention to why. 🧵

4 weeks ago 139 91 5 14
A staircase diagram with six levels rising from bottom-left to top-right. Each level on the left represents a stage in the causal chain of climate change, connected by a dashed arrow to a corresponding intervention on the right. From bottom to top: Root Drivers (economic system, fossil finance, colonial and historical structures, geopolitics) connects to Transformative System Change (economic restructuring, post-colonial redress, geopolitical shifts); Human Activities (consumption and production patterns) connects to Socio-technical and Behavioural Change (electrification, behaviour change, market incentives); Energy and Land Systems connects to Infrastructure Transition (renewables, grids, land-use redesign); Emissions connects to End-of-pipe Controls (CCS); Atmospheric GHG Concentrations connects to Carbon Dioxide Removal (including NETs); Earth's Energy Imbalance connects to Geoengineering (SRM). A diagonal arrow runs across the full diagram from Structural/Preventative at the bottom-left to Reactive/Compensatory at the top-right.

A staircase diagram with six levels rising from bottom-left to top-right. Each level on the left represents a stage in the causal chain of climate change, connected by a dashed arrow to a corresponding intervention on the right. From bottom to top: Root Drivers (economic system, fossil finance, colonial and historical structures, geopolitics) connects to Transformative System Change (economic restructuring, post-colonial redress, geopolitical shifts); Human Activities (consumption and production patterns) connects to Socio-technical and Behavioural Change (electrification, behaviour change, market incentives); Energy and Land Systems connects to Infrastructure Transition (renewables, grids, land-use redesign); Emissions connects to End-of-pipe Controls (CCS); Atmospheric GHG Concentrations connects to Carbon Dioxide Removal (including NETs); Earth's Energy Imbalance connects to Geoengineering (SRM). A diagonal arrow runs across the full diagram from Structural/Preventative at the bottom-left to Reactive/Compensatory at the top-right.

4/ I've drawn a diagram that maps the full causal chain, from root drivers to Earth's Energy Imbalance, and the interventions implied at each level.

The direction of travel matters enormously.

4 weeks ago 25 9 6 0
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Yeah but whatabout the co op. Can't get any more blatant than "free from Easter" 😂

4 weeks ago 2 0 1 0
Experience

So there's also an interactive map highlighting all the events sent in by met services around the world. It's still not a systematic assessment, but it gives a good idea of how difficult a systematic near real time assessment of extremes would be.

experience.arcgis.com/experience/2...

4 weeks ago 5 2 1 0
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More – not less – science needed to protect our planet, says former Tyndall Centre Director - Tyndall Centre for Climate Change Research Professor Corinne Le Quéré says the breakdown in international cooperation, long supporting global progress on climate action, has hit science head on. Speaking candidly about deliberate efforts by…

“I think it is time that we... call out deliberate efforts to undermine science and scientists, as they serve no one. And that we work with science to develop + implement the many solutions that work for us, and for others around our one planet.”

Read Corinne Le Quéré's speech ⬇️

4 weeks ago 3 2 0 0
Key Climate Indicators

The WMO State of the Global Climate 2025 report came out today.

The report landing page with the report, press release, Story Map, extremes supplement, and an interactive extremes map.

wmo.int/publication-...

mini-thread

4 weeks ago 34 23 4 1
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The US is on the verge of an all-time heat record for March. Yes, it’s climate change. | CNN The impending US heat record is an alarming signal of how hot the planet is getting and how fast it’s happening.

“Climate scientists at World Weather Attribution published an analysis Friday that found this heat wave would be ‘virtually impossible for this time of year in a world without human-induced climate change.’”

1 month ago 174 106 8 1
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Ever wonder what’s hidden beyond the public spaces of a library? Today, for Smithsonian Affiliates #MuseumLibraryWeek Day 3, we’re giving you a peek behind the scenes at the @ncar-ucar.bsky.social Library and Archives!

1 month ago 3 3 1 0
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“On Liberty” Now Officially Has Two Authors - Daily Nous An edition of On Liberty published this month is the first to officially name Harriet Taylor Mill as a co-author alongside John Stuart Mill. The new volume is edited by Piers Norris Turner (Ohio State...

Harriet Taylor Mill officially recognised as co-author of 'On Liberty'! dailynous.com/2026/03/19/o...

1 month ago 833 289 11 62
Four oceanographic sections and a small inset globe showing a meridional survey line in the Pacific Ocean. The two plots on the left show δ3He (%) and the two on the right show ΔHe (%), with the top row plotted against neutral density (γn) in kg m−3 and the bottom row plotted against depth in meters. The x-axis for all plots represents Latitude, ranging from 20°S to 55°N. The color scales use a "cool-to-warm" gradient, where deep blue represents lower values (roughly 12% for δ3He and 3.5% for ΔHe) and bright pink/white indicates high-concentration plumes (exceeding 32% and 7.5%, respectively). These high-value plumes are most prominent in the mid-depths between 2,000 and 3,000 meters, particularly near the equator and 20°N, suggesting hydrothermal injection. The bottom plots include a jagged grey silhouette representing the seafloor bathymetry, featuring a prominent ridge peak near 20°N that coincides with a localized helium maximum.

Four oceanographic sections and a small inset globe showing a meridional survey line in the Pacific Ocean. The two plots on the left show δ3He (%) and the two on the right show ΔHe (%), with the top row plotted against neutral density (γn) in kg m−3 and the bottom row plotted against depth in meters. The x-axis for all plots represents Latitude, ranging from 20°S to 55°N. The color scales use a "cool-to-warm" gradient, where deep blue represents lower values (roughly 12% for δ3He and 3.5% for ΔHe) and bright pink/white indicates high-concentration plumes (exceeding 32% and 7.5%, respectively). These high-value plumes are most prominent in the mid-depths between 2,000 and 3,000 meters, particularly near the equator and 20°N, suggesting hydrothermal injection. The bottom plots include a jagged grey silhouette representing the seafloor bathymetry, featuring a prominent ridge peak near 20°N that coincides with a localized helium maximum.

One of the dumbest claims from climate deniers is that ocean warming is from deep-sea volcanoes. ³He in the deep ocean comes from volcanoes, and if heat and carbon did too, the ocean temp and carbon distribution would be similar to ³He (they’re not).

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

1 month ago 82 19 2 0
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‘I’m not a scientist’: Why judges need the climate chapter in the Reference Manual on Scientific Evidence Removing the climate science chapter advances neither science nor the law. It only deprives judges of a resource needed to do their jobs.

Commentary by legal scholars and @uniofeastanglia.bsky.social climate scientist Ben Santer on the removal of the climate science chapter from the US FJC Reference Manual on Scientific Evidence:
thebulletin.org/2026/03/im-n...

1 month ago 6 3 0 0
Rapid Evaluation Framework

This is going to be useful: The CMIP Rapid Evaluation Framework (REF) for derived data from the CMIP archives:

dashboard.climate-ref.org

Still working out the kinks and focused on CMIP6, but will expand for CMIP7.

#CMIP2026

1 month ago 43 12 2 0