Tootfinder

The Power of Strong Linearizability: the Difficulty of Consistent Refereeing
Hagit Attiya (Technion - Israel Institute of Technology), Armando Casta\~neda (Universidad Nacional Aut\'onoma de M\'exico), Constantin Enea (LIX, Ecole Polytechnique, CNRS and Institut Polytechnique de Paris)
https://arxiv.org/abs/2506.18401

The Power of Strong Linearizability: the Difficulty of Consistent Refereeing
This paper studies the relation between agreement and strongly linearizable implementations of various objects. This leads to new results about implementations of concurrent objects from various primitives including window registers and interfering primitives. We consider implementations that provide both strong linearizability and decisive linearizability. We identify that lock-free, respectively, wait-free, strongly linearizable implementations of several concurrent objects entail a form of…

"Paris goal of 1.5°C warming is still too hot for polar ice sheets, study warns"
#ParisAgreement #Climate #ClimateChange

Paris goal of 1.5°C warming is still too hot for polar ice sheets, study warns
At the landmark Paris climate agreement, nearly every country in the world pledged to a goal to limit warming to well below 2° Celsius (3.6° Fahrenheit) above preindustrial levels by 2100, and work toward a more ambitious goal to limit warming to 1.5°C (2.7°F). The hope is that such a limit will help Earth avoid […]

Paris goal of 1.5°C warming is still too hot for polar ice sheets, study warns https://news.mongabay.com/short-article/2025/06/paris-goal-of-1-5c-warming-is-still-too-hot-for-polar-ice-sheets-study-warns/

Paris goal of 1.5°C warming is still too hot for polar ice sheets, study warns
At the landmark Paris climate agreement, nearly every country in the world pledged to a goal to limit warming to well below 2° Celsius (3.6° Fahrenheit) above preindustrial levels by 2100, and work toward a more ambitious goal to limit warming to 1.5°C (2.7°F). The hope is that such a limit will help Earth avoid […]

New oil and gas fields incompatible with Paris climate goals #environment

New oil and gas fields incompatible with Paris climate goals
Opening any new North Sea oil and gas fields is incompatible with achieving the Paris Climate Agreement goals of limiting warming to 1.5°C or holding warming to "well below 2°C" relative to preindustrial levels, finds a new report published by UCL academics.

"New oil and gas fields incompatible with Paris climate goals"
#Climate #ClimateChange #ParisAgreement

New oil and gas fields incompatible with Paris climate goals
Opening any new North Sea oil and gas fields is incompatible with achieving the Paris Climate Agreement goals of limiting warming to 1.5°C or holding warming to “well below 2°C” relative to preindustrial levels, finds a new report published by UCL academics.

Ensured Energy: A simulation game to elicit preferences around Swiss energy transition pathways
Toby Simpson, Saara Jones, Gracia Br\"uckmann, Walid El-Ajou, Erwan Moreira, Borja Martinez Oltra, Rolf Krause, Michael Multerer, Isabelle Stadelmann
https://arxiv.org/abs/2508.12799

Ensured Energy: A simulation game to elicit preferences around Swiss energy transition pathways
The 2015 Paris Agreement on global warming specifies national objectives for the reduction of greenhouse gas emissions. In support of Switzerland's energy and climate strategy for 2050, researchers investigate scenarios for the transition of energy systems towards a higher share of renewables, assessing their social, environmental and economic impact. Their results guide stakeholders and policy makers in designing resilient and sustainable systems. Political scientists use surveys to quantify p…

Propensity score with factor loadings: the effect of the Paris Agreement
Angelo Forino, Andrea Mercatanti, Giacomo Morelli
https://arxiv.org/abs/2507.08764

Propensity score with factor loadings: the effect of the Paris Agreement
Factor models for longitudinal data, where policy adoption is unconfounded with respect to a low-dimensional set of latent factor loadings, have become increasingly popular for causal inference. Most existing approaches, however, rely on a causal finite-sample approach or computationally intensive methods, limiting their applicability and external validity. In this paper, we propose a novel causal inference method for panel data based on inverse propensity score weighting where the propensity s…

Good Morning #Canada
The Webster–Ashburton Treaty was signed August 9, 1842, and resolved several border issues between the United States and the British North American colonies (the region that very soon would become the Dominion of Canada). The treaty would end disputes and controversies over the vague indefinite terms and text of the old peace agreement of the Treaty of Paris of 1783, which ended the American Revolutionary War. Specifically, it defined borders between Maine and New Brunswick, territory surrounding Lake Superior, and reaffirmed the western border on the 49th parallel. More importantly, it began a period of peace and friendly diplomacy between the two countries... until Americans decided a moronic spray tanner, suspected abuser of women, convicted felon, golf cheat, and narcissistic conman should be their president.
#CanadaIsAwesome #History
https://thecanadianencyclopedia.ca/en/article/webster-ashburton-treaty

Measuring spatial coherence of quantum and classical light with an ultrastable monolithic interferometer
Edoardo Suerra, Mirko Siano, Bruno Paroli, Samuele Altilia, Marco A. C. Potenza, Matteo G. A. Paris, Simone Cialdi
https://arxiv.org/abs/2507.01512

Measuring spatial coherence of quantum and classical light with an ultrastable monolithic interferometer
We describe a monolithic interferometer for spatial coherence measurements of both classical and quantum light sources. The design combines parametric down-conversion with a thermal source, using two identical calcite crystals to control beam alignment via birefringence. The monolithic structure ensures inherent stability. Spatial coherence is measured through temporal interferograms and spectral analysis, with both methods showing close agreement with theoretical predictions. The system is rob…

"Can you trust climate information? How and why powerful players are misleading the public"
#Climate #ClimateChange
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Can you trust climate information? How and why powerful players are misleading the public
Ten years ago, the world committed itself to keeping global warming well below 2°C (and preferably below 1.5°C) above the pre-industrial era. This would be done by reducing greenhouse gas emissions significantly by 2030 and ending all human-caused greenhouse gas emissions by 2050. This was the time of promises, with 195 countries signing up to the legally binding, global treaty on climate change, the Paris Agreement.

UN chief puts faith in market forces to combat climate change, urging governments to accelerate renewables transition and avoid new fossil fuel investments. #climatechange #climatesolutions #climate

UN chief tells AP that market forces could be what ends fossil fuels
United Nations Secretary-General Antonio Guterres says money, not just science, makes the case for curbing climate change. Guterres in an exclusive interview with The Associated Press highlights the falling costs of renewable energy like solar and wind. Guterres warns that investments in fossil fuels could become financial losses. He stresses the urgency of reducing emissions to limit global warming to 1.5 degrees Celsius, a goal set by the Paris Agreement. While some scientists believe that ta…