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Alice Rizzardo

@alicerizzardo.bsky.social
152 followers 93 following 144 posts

Mathematician at the University of Liverpool. Interested in rewilding/conservation/sustainability (not part of my day job) and higher education (very much part of my day job). Some maths may sneak in. I also like humor and books. Pictures are my own.

PostsRepliesMedia
Reposted by Alice Rizzardo
Grant @syncingsinking.bsky.social · 10/09/2026
This is just to say I have solved the open questions that were in your paper and which you were probably saving for your phd students Forgive me they were delicious so incentive-laden and followed so readily once your postdoc's drafts mysteriously found their way into my training data
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Alice Rizzardo @alicerizzardo.bsky.social · 11/09/2026
I was chuffed with this picture of a peacock on a drizzly day, taken at Ruthin castle. Peacocks are so long! Getting it on the diagonal allowed me to fit more of the bird in without zooming out too much #flyday
A peacock about to jump down from a handrail
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Alice Rizzardo @alicerizzardo.bsky.social · 01/09/2026
Botanical ordeals
Bernini, Apollo e Dafne (detail)Kristalova, Lust for life (detail), currently at the Venice Biennale
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Alice Rizzardo @alicerizzardo.bsky.social · 03/08/2026
Overheard on the train, from a *very* cheerful group of people: “Day drinking is better, because you get to go to bed early!” How wholesome <3
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Alice Rizzardo @alicerizzardo.bsky.social · 12/07/2026
Great article about gardening! I liked the pragmatic and balanced approach to native plants. It also reminded me that while I tend to think of pollinators, there are many more cool insects a well thought out garden can host.
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Reposted by Alice Rizzardo
Antonio Vecoli (@tonyveco on X) @tonyveco.bsky.social · 28/06/2026
🔴⚠️🌡️🌊The unprecedented #heatwave over #Europe is bringing its effects also to the Mediterranean Sea. In the last few days the #Copernicus Sea Surface Temperature has rapidly increased and the latest anomaly data exceed 8°C ⬇️SST daily anomaly on 27 June 2026 #climateemergency
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UK Centre for Ecology & Hydrology (UKCEH) @ukceh.bsky.social · 25/06/2026
New data on insect pollinators show a dramatic decline in hoverflies across Great Britain between 2017–2024. 📉 Around one third reduction in abundance & number of hoverfly species recorded as part of @pomscheme.bsky.social www.ceh.ac.uk/press/new-da... 1/ @jncc.bsky.social 🧪
Epistrophe grossulariae hoverfly and pollen beetles on hogweed, and text headline New data show dramatic decline in hoverflies across Great BritainMeliscaeva cinctella hoverfly, and text about hoverflies and UK Pollinator Monitoring Scheme results
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Alice Rizzardo @alicerizzardo.bsky.social · 16/06/2026
Greggs should hire someone to write the Northern English response to the Currywurst song and it should start like this (same melody): Going for a stroll Hunger in my soul A sausage roll Feeling kind of droll I can't cook at all A sausage roll I'm sad and I'm blue I'll better get two Sausage rolls
youtube.com
Currywurst (Remastered 2016)
YouTube video by Herbert Grönemeyer - Topic
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Alice Rizzardo @alicerizzardo.bsky.social · 11/06/2026
Devastating burn for all of us prigs writing essays. From Middlemarch. #booksky
"Are you beginning to dislike slang, then?" said Rosamond, with mild gravity.

"Only the wrong sort. All choice of words is slang. It marks a class."

"There is correct English: that is not slang."

"I beg your pardon: correct English is the slang of prigs who write history and essays. And the strongest slang of all is the slang of poets."
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Alice Rizzardo @alicerizzardo.bsky.social · 11/06/2026
Exciting news for UK wildlife today as badger culls will stop soon! Here is a Cumbrian badger looking handsome #wildlife #naturephotography
A European badger on a dark background
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Reposted by Alice Rizzardo
Simon Kuestenmacher @simongerman600.bsky.social · 08/06/2026
This map shows annual truck traffic on European main roads, colored by route distance. The map gives a sense of on which corridors the long distance traffic travels and how far the infrastructure interdependencies within the network road reach. Source: buff.ly/TyeZr2D HT Jakob Rogstadius
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Alice Rizzardo @alicerizzardo.bsky.social · 03/06/2026
In very important news, the cutest hedgehog moved into my mom's garden
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Reposted by Alice Rizzardo
Alexandra Petri @petridishes.bsky.social · 20/05/2026
listen up graduates
theatlantic.com
My Mention of AI in This Commencement Speech Is Bound to Be a Hit
Why are you booing?
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Reposted by Alice Rizzardo
Ed Hawkins @edhawkins.org · 08/05/2026
Spiralling global temperatures (1850-2026) It is exactly 10 years since I first put this animated graphic of changes in global temperature online. #ClimateSpiral It instantly went viral. People watched it over and over again. It still offers the power to shock a decade on.
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Alice Rizzardo @alicerizzardo.bsky.social · 17/04/2026
I think this is a really big deal and few people on Bluesky are talking about it: An LLM (GPT-5.4 Pro) just solved a relatively well-known open problem in number theory. The proof contains a “new idea”: briefly, it adapts an existing strategy to apply it with a different ingredient.
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Alice Rizzardo @alicerizzardo.bsky.social · 13/04/2026
As a lecturer in the UK this article was tough to read.
theguardian.com
‘I see it as trafficking’: the brutal reality of life as a foreign student in the UK
The long read: Universities in Britain rely on overseas applicants paying full fees, which has given rise to some unscrupulous recruiters and left many hopefuls and their families deep in debt
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Alice Rizzardo @alicerizzardo.bsky.social · 13/04/2026
One of the things I love about German is the sheer number of words that translate (loosely) to know-it-all, with varying degrees of rudeness and *so* much more creativity than the English options -- which are mostly just combinations of smart, wise, and ass. 1/3
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Alice Rizzardo @alicerizzardo.bsky.social · 01/04/2026
Breaking news from Germany: a wolf bit a woman in Altona, a hip neighborhood in Hamburg. They were both in a supermarket and the woman tried to help the wolf with the automatic doors, which the young wolf did not appreciate.
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Alice Rizzardo @alicerizzardo.bsky.social · 09/03/2026
Spring is here
A very young lamb peeking out from behind a tree stump
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Alice Rizzardo @alicerizzardo.bsky.social · 27/02/2026
Does this count for #Flyday
A greylag goose at Martin Mere
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Reposted by Alice Rizzardo
19thnews @19thnews.org · 23/02/2026
The trove of files released by the Department of Justice, illuminates Epstein’s deep interest and entrenchment in the scientific community. But the files also underscore how he used his power and money in ways that kept women out of places where they might succeed. bit.ly/4qWgPLz
bit.ly
The boys’ club: How Epstein’s influence shaped the exclusion of women in STEM
In one email, an AI researcher suggested it’s “hard to be brilliant if you are worrying if you look fat or why another woman hates you.”
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Reposted by Alice Rizzardo
David Ho @davidho.bsky.social · 19/02/2026
80% of agricultural land is used for livestock (and textiles), yet this huge land use provides only 17% of our calories and 38% of our protein. 16% of the land used for crops provides 83% of our calories and 62% of our protein. It's past time we rethink what we eat.
An infographic from Our World in Data titled "Global land use for food production" uses a series of stacked horizontal bar charts to visualize the distribution of Earth's surface and the disproportionate land requirements of livestock. The first bar shows Earth's surface is 71% ocean and 29% land (141 million km²); the land surface is then broken down into 76% habitable land, 10% glaciers, and 14% barren land. Of the habitable land, 45% (48 million km²) is used for agriculture, while 38% is forests and 13% is shrubland. The agricultural land bar reveals a major disparity: 80% (38 million km²) is dedicated to livestock (meat, dairy, and textiles) including grazing land and cropland for feed, while only 16% is used for crops for direct human consumption and 4% for non-food crops. Finally, two smaller bars at the bottom contrast this land use with nutritional output, showing that while livestock uses 80% of agricultural land, it only provides 17% of global calories and 38% of global protein, whereas plant-based foods provide 83% of calories and 62% of protein.
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Alice Rizzardo @alicerizzardo.bsky.social · 06/02/2026
How to write a long thread on bluesky: the 20-step process I follow every time 🧵
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Alice Rizzardo @alicerizzardo.bsky.social · 12/01/2026
Gilgamesh, the Mesopotamian epic hero, is described as 2/3 divine and 1/3 human. This is an unusual god:human ratio! Many epic heroes are demigods, half god and half human, but Gilgamesh is unique in having a 2:1 divinity ratio. How could this be? 💙📚 1/n
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Alice Rizzardo @alicerizzardo.bsky.social · 12/12/2025
Another reason not to fly
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Alice Rizzardo @alicerizzardo.bsky.social · 10/11/2025
I finished marking my class test! And everyone passed! Here is a happy seal from my summer vacation:
A seal tilting his head to avoid some spray from a stray wave. His eyes are closed and he looks like he is smiling.
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Reposted by Alice Rizzardo
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 10/10/2025
About *a third* of global fossil fuel CO2 emissions emitted during the Industrial age have occurred in roughly the last 17 years. The previous third was emitted over a period of roughly 26 years. The first third was emitted over a period of about 131 years.
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Alice Rizzardo @alicerizzardo.bsky.social · 23/09/2025
Here's some start-of-the-semester good news: my students are chatty again! For a few years after COVID, students of my course wouldn't talk to each other during breaks. I couldn't get them to work together, either. It was heartbreaking. But now they're back to being sociable and it makes me happy
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Reposted by Alice Rizzardo
Jan Rosenow @janrosenow.bsky.social · 23/09/2025
Critics of renewables often point to land use as a reason not to invest in wind & solar. Land use IS a real issue for all energy assets incl renewables (unless on-site). But what critics conveniently forget is the huge land impact of fossil fuels. Aerial view of fracking sites in Wickett, Texas. 👇
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Alice Rizzardo @alicerizzardo.bsky.social · 11/09/2025
What’s sad and perplexing about this is that I studied at the University in Bologna for 5 years and I didn’t learn about her until now. The classrooms in the maths department are named after mathematicians with a connection to Bologna, except for one which is aptly named “7th floor classroom”...
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Alice Rizzardo @alicerizzardo.bsky.social · 11/09/2025
"The first woman in the modern period to make a substantial contribution to mathematics was the Italian Maria Agnesi (1718–1799) who in 1748 published one of the earliest textbooks on the differential and integral calculus, 🧵1/n
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Reposted by Alice Rizzardo
Fiona Mathews @fionamathews.bsky.social · 09/09/2025
Fantastic news for British wildlife and the climate 🌎🦤: a ban on burning deep peatlands (>30cm). This terrible practice is used to manage moors for grouse shooting. Comes into force on 30th Sept, a day ahead of new burning season. 👏 @defra.gov.uk www.gov.uk/government/n...
gov.uk
Burning banned on England’s deep peat to protect wildlife
Ban on burning heather and grass on deep peat extended to improve air quality for local communities, reduce flood risk and protect wildlife.
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Alice Rizzardo @alicerizzardo.bsky.social · 01/09/2025
"When the bellows-blowers relaxed their efforts and the fires dimmed, he would remind them of their duties by a blast from a cow horn" #MondayMotivation
trinityhouse.co.uk
Lizard Lighthouse
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Reposted by Alice Rizzardo
WRI Climate @wriclimate.bsky.social · 31/08/2025
🌍 1/3 of global emissions come from the food system. Even if fossil fuels are phased out, food emissions alone could push us past 1.5°C. We must transform how we grow, distribute, eat & waste food. Explore #SystemsChangeLab 👉 bit.ly/3SWc9qv
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Alice Rizzardo @alicerizzardo.bsky.social · 16/08/2025
Invention of the wheel, ca. 1890. Source unknown.
An old photograph of a group of men looking intently at a stone with a round hole in the middle. A child standing near the stone looks unimpressed.
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Alice Rizzardo @alicerizzardo.bsky.social · 03/08/2025
"We’re a naturally social, altruistic, democratic species." An unexpectedly cheerful bit in an article on societal collapse
theguardian.com
‘Self-termination is most likely’: the history and future of societal collapse
An epic analysis of 5,000 years of civilisation argues that a global collapse is coming unless inequality is vanquished
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Alice Rizzardo @alicerizzardo.bsky.social · 21/07/2025
Which drink would you think contains more microplastics, one that comes in a plastic bottle with a plastic cap or in a glass bottle with a metal cap? Think again!
theguardian.com
Metal bottle caps ‘surprising’ source of microplastic contamination, study finds
Glass bottles had highest levels of the substance compared with beer, water, wine and soft drinks, researchers found
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Alice Rizzardo @alicerizzardo.bsky.social · 13/07/2025
How did this not make my timeline? Bluesky, you disappoint me
cbc.ca
Chimps are sticking grass and sticks in their butts, seemingly as a fashion trend | CBC Radio
A group of chimpanzees in Zambia have resurrected an old fashion trend with a surprising new twist.
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Alice Rizzardo @alicerizzardo.bsky.social · 03/07/2025
“All novels are translations, even in their original language”. That's the beginning of Michael Cunningham’s introduction to Michael Henry Heim’s translation of Death in Venice. It's a beautiful meditation on the many difficulties of translating a book,
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Alice Rizzardo @alicerizzardo.bsky.social · 22/06/2025
I just misunderstood the lyrics "kein Schwein ruft mich an" (nobody ever calls me) for "ein Schwein ruft mich an" (a pig phones me up) making the song a lot more interesting and also proving my point that German is fiddly
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Alice Rizzardo @alicerizzardo.bsky.social · 16/06/2025
When do girls fall behind in maths? According to this study, maths abilities of boys and girls are very similar when starting school, but after just a few months of schooling they start diverging sharply with girls lagging behind. I'd love to learn more about what happens in that crucial first year.
nature.com
When do girls fall behind in maths? Gigantic study pinpoints the moment
Analysis of almost three million children captures when ‘mathematical gender gap’ first emerges and could help focus efforts to stop girls from falling behind.
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Alice Rizzardo @alicerizzardo.bsky.social · 05/06/2025
Insects are crucial to nature. We are starving our birds, but we are also putting ourselves in danger: insects perform essential tasks to human survival such as pollination, decomposition of organic matter and feces, pest suppression, and so many more that we are just beginning to understand.
theguardian.com
‘Half the tree of life’: ecologists’ horror as nature reserves are emptied of insects
A new point in history has been reached, entomologists say, as climate-led species’ collapse moves up the food chain even in supposedly protected regions free of pesticides
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Alice Rizzardo @alicerizzardo.bsky.social · 03/06/2025
This cool article shows how little transportation affects the carbon footprint of (most of) what we eat, so that “eat local” is not as important if shrinking your carbon footprint is your main objective. I was curious to see how this would apply to my own diet: a thread! 1/n
ourworldindata.org
You want to reduce the carbon footprint of your food? Focus on what you eat, not whether your food is local
“Eat local” is a common recommendation to reduce the carbon footprint of your diet. How does the impact of what you eat compare to where it's come from?
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Mx Xs @jamtart.bsky.social · 14/05/2025
Not In Our Name - Feminist Academics and Educators Speak Out (signature form linked at top of document) @gemmaclark.bsky.social @philippaeast.bsky.social @hazelmpinner.bsky.social @debrakidd.bsky.social @busygranof6.bsky.social @girasoles-lady.bsky.social docs.google.com/document/d/1...
docs.google.com
Not In Our Name - Feminist Academics and Educators Speak Out - with signatures
To co-sign the statement, fill in this form: https://forms.gle/oDYgnobrMiScaMEt5 (Please do not ‘request share’, rather, fill in the form ^ ^.) Not In Our Name: Feminist Academics and Educators Sp...
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Alice Rizzardo @alicerizzardo.bsky.social · 15/05/2025
Here is a cool map about land use in the UK, and the agricultural land abroad used to feed the UK. Note the huge amount of land we use for beef and lamb pastures. Altogether, the amount of land used to rear these animals + grow their food is slightly bigger than the area of the UK itself.
A map of the UK, subdivided into imaginary regions of size corresponding to the actual amount of land in the UK dedicated to various purposes (such as "Beef and lamb pastures, "Cereals", "Built up"). Additional hexagons to the side indicate the amount of overseas land also used to feed the UK.
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Alice Rizzardo @alicerizzardo.bsky.social · 09/05/2025
Are you upset about climate change? Here’s something useful that you can do relatively easily (!), and that will make you feel good: change your bank! Banks are among the major funders of the fossil fuel industry. You can check how your bank is doing or find a greener alternative here:
bank.green
Find Ethical & Sustainable Banks In Your Area - Bank.Green
Bank.Green is sounding the alarm on the climate-destroying activities of banks while recommending sustainable alternatives and empowering consumer action.
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RSPB @rspb.bsky.social · 02/05/2025
Last year the EU challenged the UK's closure of industrial sandeel fishing in its waters. These closures are a lifeline for the millions of seabirds which rely on sandeels for food. Reversing them would be a blow for hungry Puffins, Kittiwakes, and other birds.
A Puffin with its beak full of sandeel fish looks down the camera.
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School of Physical Sciences @livunisps.bsky.social · 03/04/2025
📣 Join us for the 2025 Terry Wall Lecture with Professor Wendelin Werner on 1st May at 4pm in Lecture Theatre B! The talk, "Connections via chains of random loops," explores exciting connections in mathematics and physics. ☕️ Coffee at 3:30pm, refreshments after! Learn more🔗 tinyurl.com/48a398wf
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Alice Rizzardo @alicerizzardo.bsky.social · 24/04/2025
Labour: Britain is one of the most nature-depleted countries in the world. Also Labour: let’s finish the job and deplete it once and for all so we can stop worrying about it
rskwilding.com
A Letter to MPs on Part III of the P&I Bill
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Janel Comeau 🍁 @verybadllama.bsky.social · 03/04/2025
I have tariffed the penguins that are on Heard Island and which you were probably assuming did not export goods forgive me they were taking advantage of us so cunning and so cold
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