Tootfinder

"Hydrogen emissions are ‘supercharging’ the warming impact of methane"
#Hydrogen #Emissions #Methane

Hydrogen emissions are ‘supercharging’ the warming impact of methane - Carbon Brief
The warming impact of hydrogen has been “overlooked” in projections of climate change, authors of the latest “global hydrogen budget” say.

Packers' sideline heaters malfunction during first half in Chicago https://www.nytimes.com/athletic/6907546/2025/12/20/packers-bench-heaters-malfunction-bears/

I guess, not surprisingly, this "peace plan" only benefits Russia and the US. Horrible
November 21, 2025 - by Heather Cox Richardson
https://heathercoxrichardson.substack.com/p/november-21-2025

November 21, 2025
Ukraine’s president Volodymyr Zelensky addressed the Ukrainian people today.

LLM Cache Bandit Revisited: Addressing Query Heterogeneity for Cost-Effective LLM Inference
Hantao Yang, Hong Xie, Defu Lian, Enhong Chen
https://arxiv.org/abs/2509.15515 https:…

LLM Cache Bandit Revisited: Addressing Query Heterogeneity for Cost-Effective LLM Inference
This paper revisits the LLM cache bandit problem, with a special focus on addressing the query heterogeneity for cost-effective LLM inference. Previous works often assume uniform query sizes. Heterogeneous query sizes introduce a combinatorial structure for cache selection, making the cache replacement process more computationally and statistically challenging. We treat optimal cache selection as a knapsack problem and employ an accumulation-based strategy to effectively balance computational o…

🧽 Solar-powered system produces green hydrogen directly from air moisture
#energy

Solar-powered system produces green hydrogen directly from air moisture
A team led by Prof. Yin Huajie from the Hefei Institute of Physical Science of the Chinese Academy of Sciences has developed a solar-powered system that produces green hydrogen directly from atmospheric moisture without relying on external water or energy sources.

Distributed Nash Equilibrium Seeking Algorithm in Aggregative Games for Heterogeneous Multi-Robot Systems
Yi Dong, Zhongguo Li, Sarvapali D. Ramchurn, Xiaowei Huang
https://arxiv.org/abs/2509.15597

Distributed Nash Equilibrium Seeking Algorithm in Aggregative Games for Heterogeneous Multi-Robot Systems
This paper develops a distributed Nash Equilibrium seeking algorithm for heterogeneous multi-robot systems. The algorithm utilises distributed optimisation and output control to achieve the Nash equilibrium by leveraging information shared among neighbouring robots. Specifically, we propose a distributed optimisation algorithm that calculates the Nash equilibrium as a tailored reference for each robot and designs output control laws for heterogeneous multi-robot systems to track it in an aggreg…

Bayesian Mixture Models for Heterogeneous Extremes
Viviana Carcaiso, Miguel de Carvalho, Ilaria Prosdocimi, Isadora Antoniano-Villalobos
https://arxiv.org/abs/2509.15359 https:/…

Bayesian Mixture Models for Heterogeneous Extremes
The conventional use of the Generalized Extreme Value (GEV) distribution to model block maxima may be inappropriate when extremes are actually structured into multiple heterogeneous groups. This can result in inaccurate risk estimation of extreme events based on return levels. In this work, we propose a novel approach for describing the behavior of extreme values in the presence of such heterogeneity. Rather than defaulting to the GEV distribution simply because it arises as a theoretical limit…

A new idea about how to make clean Hydrogen that fits into an existing industry? ✨🌱💧
Clean Hydrogen🌱💧 will be more difficult than we might've hoped, but we still need it. Just decarbonizing the fossil🦖 Hydrogen industry is a massive undertaking. New ideas are welcome.
I recently learned about Peregrine Hydrogen. They make Hydrogen, but also something else: Sulfuric Acid🧪. They need ~½ the electricity⚡ compared to conventional electrolysis by utilizing a 2nd input.
🧵

This Hydrogen has no Color
Peregrine Hydrogen has an unusual idea for making clean Hydrogen, one that it says fits into existing industrial processes. One of the world's largest Phosphate mining companies is interested.

All the NASA s/c images of #3IATLAS shared today (and some more) can be found at https://science.nasa.gov/solar-system/comets/3i-atlas/comet-3i-atlas-image-gallery/ now - including this spectrum from the Imaging Ultraviolet Spectrograph on MAVEN taken on 28 September, showing hydrogen emitted from different sources, namely the comet (dim spot on the far left), hydrogen from Mars (bright emission on the right), and hydrogen flowing through our solar system between the planets (dim emission in the middle).

🫧 In controversial move, LADWP says it will shift its largest gas power plant to hydrogen
https://techxplore.com/news/2025-10-controversial-ladwp-shift-largest-gas.html

In controversial move, LADWP says it will shift its largest gas power plant to hydrogen
On Oct. 28, the board of the Los Angeles Department of Water and Power approved a controversial plan to convert part of the city's largest natural gas-fired power plant into one that also can burn hydrogen.