Svalbard is thawing in April, and it’s not supposed to. 2026 ground temperatures at 0.2m depth in Svalbard spiking to 0°C in April, far exceeding the 1998-2025 median and maximum

Table showing sunrise, sunset, and twilight times for April 2026 in Helsinki, Finland. The highlighted column show Astronomical Twilight start and end times. The highlighted row indicates today's date (April 21). Last night was the last night with full darkness. In the upcoming months astronomical twilight lasts all night (“Rest of night”), meaning that no full darkness occurs after this date. Figure from https://www.timeanddate.com/

Last night marked the final fully dark night until August. 🌌

From now on, the Sun never dips far enough below the horizon for full darkness.

First comes continuous astronomical twilight, and from May even civil twilight

Summer, here we come! ☀️

Hard to believe this was less than 2 months ago.

The Gulf of Finland was completely frozen over during the coldest winter since 2011.

Drone footage over the sea ice near Porkkalanniemi, Finland.

A mechanism for adaptive genome regulation in cancer - Nature In this Perspective article, a theoretical framework for how the AP-1 family of transcription factors mediates cellular adaptation in cancer drug resistance is proposed.

a wonderful Perspective article www.nature.com/articles/s41...

The true secret to getting a lot done is not caring about the quality of the work. Most people won’t tell you this*

*because it’s a terrible imposition on everyone else

Recordeu que l’important és tenir salut.

“a whole civilization will die tonight” should be reason enough for the 25th amendment

For decades, molecular biology and human genetics have been built around measurements of average gene expression. That was partly conceptual, but also technological: for a long time, the mean was the quantity we could measure most reliably. Our new preprint argues that this framework is incomplete.

Nearly every day in March had a climate fingerprint on Finland's record, snow-melting warmth.

🔴Attribution science shows that between March 10-15 and again March 19-27, the extreme heat would have been RARE (4x more likely) to VIRTUALLY IMPOSSIBLE (5x more likely) without human-caused warming.

El jo guanya terreny: cada cop som més individualistes Aquesta tendència està creixent entre els col·lectius amb menys recursos

🚆Experiències en tren que et donen idees d'articles (o idees d'articles que veus plasmats en viatges en tren?)

✍️El meu article d'avui a l'@ara.cat: El jo guanya terreny: cada cop som més individualistes www.ara.cat/politica/gua...

Chart showing the exponential collapse of the lag, extrapolated to 2.0C. Reference points show 10, 20 and 30 year lag scenarios projecting 2033, 2043 and 2053 respectively.

1/🌡️ Global warming passed a milestone on 17th Nov 2023 that barely made the news

For the first time ever, the world's daily average temperature was 2.0°C above pre-industrial levels

Here's what the data says about when that becomes the annual norm, & whether it's coming sooner than anyone expects🧵

It would be one history‘s great plot twists if Trump has now managed to alert the entire world to why they should transition away from single-use fossils to renewables as quickly as any possible - even while having dismissed global warming.

And Hormuz isn‘t even Asia‘s biggest risk.

A digital CAPTCHA verification window titled "Select all squares with PIPES" against a plain white background. The window contains a 3×3 grid of numbered squares, mixing literal hardware, smoking pipes, and programming syntax.

These captchas just keep getting harder #rstats

And actually since the 30th December, it was just ~12-20 hours above 0°C, right?

The oncogenome of the domestic cat Cancer is a common cause of morbidity and mortality in domestic cats. Because the mutational landscape of domestic cat tumors remains uncharacterized, we performed targeted sequencing of 493 feline tu...

Read ‘The oncogenome of the domestic cat’ from the Sanger Institute, the Ontario Veterinary College at @uofguelph.bsky.social , @unibe.ch , @cornelluniversity.bsky.social and others, in @science.org here ⬇️

www.science.org/doi/10.1126/...

New study maps human midbrain development and validates stem cell models for disease research | HiLIFE – Helsinki Institute of Life Science | University of Helsinki The study provides the most detailed spatiotemporal profile to date of early human midbrain development, offering a powerful new reference for neuroscience and regenerative medicine.

A study from @hkilpinen.bsky.social's lab provides the most detailed spatiotemporal profile to date of early human midbrain development, and validates stem cell models for disease research, offering a powerful new reference for neuroscience and regenerative medicine.
www.helsinki.fi/en/hilife-he...

2/4 de 7 del matí i rondes col•lapsades. I alguns volen una Catalunya de 10 milions sense trens que funcionin. Insostenible.

Advancing regulatory variant effect prediction with AlphaGenome - Nature AlphaGenome, a deep learning model that inputs 1-Mb DNA sequence to predict functional genomic tracks at single-base resolution across diverse modalities, outperforms existing models in variant effect...

I had intended to post something about this new Google DeepMind paper that appeared yesterday in Nature, but the press coverage has added to what there is to say. So this is a long 🧵
www.nature.com/articles/s41...

Developmental convergence and divergence in human stem cell models of autism - Nature Risk associated with genetically defined forms of autism spectrum disorder (ASD) can propagate by means of transcriptional regulation to affect convergently dysregulated pathways, providing insight in...

Great @nature.com study about developmental convergence & divergence in human stem cell models of autism, showing how different mutations converged on shared transcriptional changes during development 🧪
@aaron-gordon.bsky.social
@sejinyoon.bsky.social L. Bicks D. Geschwind @sergiuppasca.bsky.social

How do we then explain the massive ice loss in the Artic then? Are there more stations supporting this trend or some variability within specific latitudes?

Dissecting gene regulatory networks governing human cortical cell fate - Nature Systematic screening of transcription factors reveals conserved mechanisms governing cortical radial glia lineage progression across primates and provides a framework for functional dissection of gene regulatory networks in human cortical neurogenesis.

Nature research paper: Dissecting gene regulatory networks governing human cortical cell fate

go.nature.com/4qBG5rp

Ageing promotes microglial accumulation of slow-degrading synaptic proteins - Nature Newly developed mouse models that enable cell-specific analyses of proteostasis dynamics across the lifespan of the mice reveal key aspects of neuronal proteostasis with ageing.

Nature research paper: Ageing promotes microglial accumulation of slow-degrading synaptic proteins

go.nature.com/4jOgSHu

Nature security assessment on global biodiversity loss, ecosystem collapse and national security This strategic assessment explores how global biodiversity loss and the collapse of critical ecosystems could affect the UK’s resilience, security and prosperity.

Nature is the foundation of our security. Critical ecosystems are at risk of collapse threatening food supply, increasing disease & causing runaway climate change, likely leading to conflict, migration and geopolitical instability. Action is urgent. #KMGBF.
www.gov.uk/government/p...

"... Si la societat l’adopta com a estratègia col·lectiva pot ser el contrapunt més efectiu a la seva negació de vulnerabilitat que, de fet, és un complex d’inferioritat profund, una tragèdia personal que té conseqüències globals."

Article molt lúcid i inspirador.

"La humilitat no és debilitat, és una força sostenible que desgasta l’autoritarisme des de dins. Trump prospera en el caos i l’ego; la humilitat el priva d’oxigen."

El meu article de diumenge: La geopolítica del miratge. jvila.cat/ca/?p=3128

For context, this was the first -40 °C in Sodankylä Tähtelä since winter 2017, and only the 2nd such case in this century.

Before the 1990s, temperatures below −40 °C occurred almost every other winter.

When people argue that renewable energy sources are too expensive, remember that we don’t invade countries to seize wind farms and there are no solar cartels. Fossil fuels have enormous geopolitical, public health, and climate externalities.

A picture is worth 1000 words...

This appeared on the BBC News today, showing the increase in solar electric generation in the UK.

Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.

Chapeau!

Climate Viz of the Month November 2025 Hi! I am happy to share the first of (hopefully) some new graphics in this ‘climate viz of the month’ blog. For quite a few years now, I’ve been procrastinating on figuring out an eff…

The thickness of #Arctic sea ice dropped to a new all-time record low this year around the North Pole (data from PIOMAS). More in my latest 'climate viz of the month' blog: zacklabe.com/climate-viz-... #OpenScience #SciComm #DataViz #OpenData