As climate change starts to hit hard in the US and around the world, Trump puts his foot on the accelerator and his tech billionaire buddies are building fossil fuel power plants like mad.
https://www.nytimes.com/2026/09/13/climate/epa-power-plant-climate-rules.h…
The new #MovingPandas release 0.23 has just landed in pypi and conda-forge and I want to share with you two highlights
http://anitagraser.com/2026/08/09/movingpandas-0-23-releas…
Health officials in Louisiana are urging beachgoers to take precautions
during a summertime surge in infections from a flesh-eating bacteria found in coastal waters.
https://www.pbs.org/newshour/health/health
Mozilla tomorrow: "Our AI has escaped containment, hacked our signing keys, and committed them to a public github repository" 🙃
https://www.theregister.com/security/2026/08/11/mozilla-revokes-firefo…
Due to a >1000% increase in attempted signups on our server datasci.social in the past weeks generated by AI bots, we added a new rule: Only human users. (They won't care, but it's now explicit.)
We also clarify our ads rule: No commercial advertisements, unless permitted. This has never been an issue, but we want to be open to allow small projects supporting themselves reasonably. We deleted mention of spam as it is already covered by Mastodon's defaults.
"Fast fashion's carbon footprint can be reduced across its life cycle, new study suggests"
#FastFashion #Textiles #Clothes
Happy Birthday Diana Muldaur (88)!
https://www.instagram.com/p/DcN7-C_x0od/
For fossil fuel cars, the 'official' (test) emissions were already much lower than their real world emissions. Now the gap for plug-in hybrids has become absurd. We need to lower our emissions, and we need to reduce the EU's dependence on fossil fuel imports, and both don't care about 'official' fake numbers.
We also need more attention for real world performance of battery-electric cars, by the way.
Coupled quintessence from an axion dark sector
Rayff de Souza, Edmund J. Copeland, Jailson Alcaniz
https://arxiv.org/abs/2608.05032 https://arxiv.org/pdf/2608.05032 https://arxiv.org/html/2608.05032
arXiv:2608.05032v1 Announce Type: new
Abstract: Recent observational data arising from the DESI collaboration has hinted at a possible departure from the standard $\Lambda$CDM cosmological model, preferring instead the presence of a dynamical dark energy component. Specifically, the associated equation of state of the dark energy features a crossing into the so-called phantom regime, which is challenging to accommodate in canonical single scalar-field scenarios. However, this behavior can be effectively described by an interacting dark sector, where the specific dark energy equation of state remains above the phantom divide whilst the dark matter component deviates from the standard cold dark matter evolution. In this work, we explore this possibility in the context of an axion dark sector, where both the dark energy and dark matter are represented by two interacting axion-like fields. We show that given the required mass hierarchy for these fields to play such roles, their dynamics can be effectively placed in the coupled quintessence framework, where their motion follows from a sourced continuity equation in the fluid description. In this regime, we perform a statistical analysis of this scenario with current data, finding that a sub-Planckian dark energy axion decay constant stays well within the observational bounds without the need to fine-tune the associated field's initial conditions. We also perform a comparison with $\Lambda$CDM, where we find that the model provides a better fit to the data while staying competitive from a Bayesian perspective.
toXiv_bot_toot