Tootfinder

This https://arxiv.org/abs/2403.20295 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Active flow control of a turbulent separation bubble through deep reinforcement learning
The control efficacy of classical periodic forcing and deep reinforcement learning (DRL) is assessed for a turbulent separation bubble (TSB) at $Re_τ=180$ on the upstream region before separation occurs. The TSB can resemble a separation phenomenon naturally arising in wings, and a successful reduction of the TSB can have practical implications in the reduction of the aviation carbon footprint. We find that the classical zero-net-mas-flux (ZNMF) periodic control is able to reduce the TSB by 15…

This https://arxiv.org/abs/2302.10562 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Renewable Energy Expansion under Taxes and Subsidies: A Transmission Operator's Perspective
This paper investigates the role of a transmission system operator within a carbon footprint reduction strategy incorporating carbon taxes and renewable energy generation subsidies in the decentralised energy market. This is achieved via an optimisation bi-level model in which a welfare-maximizing transmission system operator makes investments in transmission lines at the upper level while considering power market dynamics at the lower level. To account for the deregulated energy market structu…

Paris-based Greenly, whose carbon accounting software helps SMBs track their carbon emissions, raised a $52M Series B, and reports $10M in ARR in 2023 (Tim De Chant/TechCrunch)
https://techcrunch.com/2024/03/20/greenly-series-b/

Greenly lands $52M to help smaller companies track CO2 emissions | TechCrunch
The carbon accounting startup targets SMBs to help them assess the carbon footprint of their operations and products.

Spatio-temporal load shifting for truly clean computing
Iegor Riepin, Tom Brown, Victor Zavala
https://arxiv.org/abs/2405.00036 https://

Spatio-temporal load shifting for truly clean computing
Companies with datacenters are procuring significant amounts of renewable energy to reduce their carbon footprint. There is increasing interest in achieving 24/7 Carbon-Free Energy (CFE) matching in electricity usage, aiming to eliminate all carbon footprints associated with electricity consumption on an hourly basis. However, the variability of renewable energy resources poses significant challenges for achieving this goal. We explore the impact of shifting computing jobs and associated power …

Back on the CO2 travel kick... equivalent of the day:
A 40km crossing on a BC Ferry from Nanaimo to Vancouver produces the same CO2 per passenger (5kg) as an 1800km high speed train journey from London, UK to Valencia, Spain.
We need to completely rethink travel in Canada but our political leaders are transportation cowards.
Source:
Train:

"All the while, oblivious governments are subsidising the establishment of more #datacenters to the detriment of local communities.

The data centres are the factories of our time. But we can not see them or their carbon #footprint, so they are very easy to ignore. So we do. If we can stick with …

Per Axbom (@axbom@axbom.me)
There is a broad understanding for the need to fly less, as the aviation industry accounts for more than 2% of global CO2 emissions. Yet the data centres we depend on for computing already account...

"AI may develop a huge carbon footprint, but it could also be a critical ally in the fight against climate change"
#AI #ArtificialIntelligence #Climate

AI may develop a huge carbon footprint, but it could also be a critical ally in the fight against climate change
Recently, artificial intelligence (AI) has been cast as a problem in the urgent, international effort to tackle climate change. As AI plays a greater role in our lives, it will need enormous amounts of computing power and data storage.

Densify & Conquer: Densified, smaller base-stations can conquer the increasing carbon footprint problem in nextG wireless
Agrim Gupta, Adel Heidari, Jiaming Jin, Dinesh Bharadia
https://arxiv.org/abs/2403.13611

Densify & Conquer: Densified, smaller base-stations can conquer the increasing carbon footprint problem in nextG wireless
Connectivity on-the-go has been one of the most impressive technological achievements in the 2010s decade. However, multiple studies show that this has come at an expense of increased carbon footprint, that also rivals the entire aviation sector's carbon footprint. The two major contributors of this increased footprint are (a) smartphone batteries which affect the embodied footprint and (b) base-stations that occupy ever-increasing energy footprint to provide the last mile wireless connectivity…

The nutritional value of meat should be considered when comparing the carbon footprint of lambs produced on different finishing diets
https://www.frontiersin.org/articles/10.3389/fsufs.2024.1321288/full

The nutritional value of meat should be considered when comparing the carbon footprint of lambs produced on different finishing diets
IntroductionLamb production systems are under increasing pressure to reduce their environmental footprint, particularly emissions of greenhouse gases (GHGs) such as methane. However, the metrics used to express the carbon footprint of lamb seldom consider its nutritional density and contribution to balanced diets in humans. Lamb production systems vary considerably, from low-input pastoral systems to higher-input systems feeding concentrates for the latter ‘finishing’ period. To date, no st…

Spatio-temporal load shifting for truly clean computing
Iegor Riepin, Tom Brown, Victor Zavala
https://arxiv.org/abs/2405.00036 https://

Spatio-temporal load shifting for truly clean computing
Companies with datacenters are procuring significant amounts of renewable energy to reduce their carbon footprint. There is increasing interest in achieving 24/7 Carbon-Free Energy (CFE) matching in electricity usage, aiming to eliminate all carbon footprints associated with electricity consumption on an hourly basis. However, the variability of renewable energy resources poses significant challenges for achieving this goal. We explore the impact of shifting computing jobs and associated power …

🚨 🚨 🚨 🚨 🚨 Climate Change Is Causing Trees To Struggle To “Breathe”
https://scitechdaily.com/climate-change-is-causing-trees-to-struggle-to-breathe/

Climate Change Is Causing Trees To Struggle To “Breathe”
Trees are struggling to sequester heat-trapping carbon dioxide (CO2) in warmer, drier climates, meaning that they may no longer serve as a solution for offsetting humanity’s carbon footprint as the planet continues to warm, according to a new study led by Penn State researchers. “We found that tr

Super-Insulating Our Living Room (2010) - Learn how we retrofitted interior wall insulation for winter warmth and summer cool, and trimmed our carbon footprint. #aerogel #frugal #cutCarbon -

Super-Insulating Our Living Room (2010)
Learn how we retrofitted interior wall insulation for winter warmth and summer cool, and trimmed our carbon footprint. #aerogel #frugal #cutCarbon

"All the while, oblivious governments are subsidising the establishment of more #datacenters to the detriment of local communities.

The data centres are the factories of our time. But we can not see them or their carbon #footprint, so they are very easy to ignore. So we do. If we can stick with …

Per Axbom (@axbom@axbom.me)
There is a broad understanding for the need to fly less, as the aviation industry accounts for more than 2% of global CO2 emissions. Yet the data centres we depend on for computing already account...

Good point:
"The industry could prioritize using less energy, build more efficient models and rethink how it designs and uses data centres. As the BigScience project in France demonstrated with its BLOOM model, it is possible to build a model of a similar size to OpenAI’s GPT-3 with a much lower carbon footprint. But that’s not what’s happening in the industry at large."

Generative AI’s environmental costs are soaring — and mostly secret
First-of-its-kind US bill would address the environmental costs of the technology, but there’s a long way to go.

Toward Sustainable GenAI using Generation Directives for Carbon-Friendly Large Language Model Inference
Baolin Li, Yankai Jiang, Vijay Gadepally, Devesh Tiwari
https://arxiv.org/abs/2403.12900

Toward Sustainable GenAI using Generation Directives for Carbon-Friendly Large Language Model Inference
The rapid advancement of Generative Artificial Intelligence (GenAI) across diverse sectors raises significant environmental concerns, notably the carbon emissions from their cloud and high performance computing (HPC) infrastructure. This paper presents Sprout, an innovative framework designed to address these concerns by reducing the carbon footprint of generative Large Language Model (LLM) inference services. Sprout leverages the innovative concept of "generation directives" to guide the autor…

Here's a public policy idea to reduce pollution:
Require luxury private jets to use Sustainable Aviation Fuel (SAF). If you're not familiar with SAF, take a minute to learn more about it.
SAF burns cleaner, and it can, depending on the raw materials used, have a dramatically lower carbon footprint than fossil jet fuel. And it costs 10x as much.

Sustainable aviation fuel gets a boost from the Inflation Reduction Act - Marketplace
Right now, sustainable aviation fuel is “a drop in the bucket” compared to conventional jet fuel. But that might not be for long.

The privileges of Citizenship. I just got two identical spam/scam letters, for a "loan” to my work snail-mailbox here in Nanaimo, Canada sent through Spain. 🤣🤪
I deeply apologize for the carbon footprint of this occurence.
I'm going to keep the envelope though. I like the stamp. lol. Or maybe I'll just keep this picture of the envelope, stamp, and message. I already recycled the letter itself. lol.

"AI may develop a huge carbon footprint, but it could also be a critical ally in the fight against climate change"
#AI #ArtificialIntelligence #Climate

AI may develop a huge carbon footprint, but it could also be a critical ally in the fight against climate change
Recently, artificial intelligence (AI) has been cast as a problem in the urgent, international effort to tackle climate change. As AI plays a greater role in our lives, it will need enormous amounts of computing power and data storage.

Oh for fuck's sake. I've really really tried to plan a July Europe holiday that minimises carbon footprint, uses #train etc.
Night train doesn't allow you to book very far in advance so there was no choice but to book the accommodation etc ahead. Calendar alarm tells me today's the day I can book the night train
:(

Trees struggle to 'breathe' as climate warms, researchers find
#Vote4Climate #ClimateCrisis
https://

Trees struggle to 'breathe' as climate warms, researchers find
Trees are struggling to sequester heat-trapping carbon dioxide (CO2) in warmer, drier climates, meaning that they may no longer serve as a solution for offsetting humanity's carbon footprint as the planet continues to warm, according to a new study led by Penn State researchers.

Densify & Conquer: Densified, smaller base-stations can conquer the increasing carbon footprint problem in nextG wireless
Agrim Gupta, Adel Heidari, Jiaming Jin, Dinesh Bharadia
https://arxiv.org/abs/2403.13611

Densify & Conquer: Densified, smaller base-stations can conquer the increasing carbon footprint problem in nextG wireless
Connectivity on-the-go has been one of the most impressive technological achievements in the 2010s decade. However, multiple studies show that this has come at an expense of increased carbon footprint, that also rivals the entire aviation sector's carbon footprint. The two major contributors of this increased footprint are (a) smartphone batteries which affect the embodied footprint and (b) base-stations that occupy ever-increasing energy footprint to provide the last mile wireless connectivity…

The nutritional value of meat should be considered when comparing the carbon footprint of lambs produced on different finishing diets
https://www.frontiersin.org/articles/10.3389/fsufs.2024.1321288/full

The nutritional value of meat should be considered when comparing the carbon footprint of lambs produced on different finishing diets
IntroductionLamb production systems are under increasing pressure to reduce their environmental footprint, particularly emissions of greenhouse gases (GHGs) such as methane. However, the metrics used to express the carbon footprint of lamb seldom consider its nutritional density and contribution to balanced diets in humans. Lamb production systems vary considerably, from low-input pastoral systems to higher-input systems feeding concentrates for the latter ‘finishing’ period. To date, no st…

It's funny that the 'Cloud' is anything but: it's rather a set of very concrete basements full of computers connected by lots of underground and underwater cabling.
I wonder whether a different name would have made more evident the energetic and infrastructural costs of all this.
Hat tip: @…

This https://arxiv.org/abs/2306.09434 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csAR_…

ECO-CHIP: Estimation of Carbon Footprint of Chiplet-based Architectures for Sustainable VLSI
Decades of progress in energy-efficient and low-power design have successfully reduced the operational carbon footprint in the semiconductor industry. However, this has led to an increase in embodied emissions, encompassing carbon emissions arising from design, manufacturing, packaging, and other infrastructural activities. While existing research has developed tools to analyze embodied carbon at the computer architecture level for traditional monolithic systems, these tools do not apply to nea…

I love my kitchen sink #WasteDisposal unit and, on the assumption that their use must be more environmentally friendly than not, was wondering whether to have a mini-campaign.
Views are mixed on their green-ness, the chief objections being the use of water/electricity, which seems less objectionable than the problems fruit peelings etc cause in garbage piles.
I only use oil for cookin…

Are Waste Disposal Units Environmentally Friendly? - House Happy
Have you ever asked, "Are waste disposal units environmentally friendly?" Learn the truth about their impact and find options to lessen your carbon footprint.

Power-Efficient Image Storage: Leveraging Super Resolution Generative Adversarial Network for Sustainable Compression and Reduced Carbon Footprint
Ashok Mondal (Vellore Institute of Technology, Chennai), Satyam Singh (Vellore Institute of Technology, Chennai)
https://arxiv.org/abs/2404.04642…

Power-Efficient Image Storage: Leveraging Super Resolution Generative Adversarial Network for Sustainable Compression and Reduced Carbon Footprint
In recent years, large-scale adoption of cloud storage solutions has revolutionized the way we think about digital data storage. However, the exponential increase in data volume, especially images, has raised environmental concerns regarding power and resource consumption, as well as the rising digital carbon footprint emissions. The aim of this research is to propose a methodology for cloud-based image storage by integrating image compression technology with SuperResolution Generative Adversar…

Disposable wooden cutlery emits 73% less CO2-eq than disposable plastic cutlery. Cutlery made of bio-plastic emits practically the same as conventional plastic (only < 1% less).
https://www.mdpi.com/2071-1050/14/24/16563

Carbon Footprint of Single-Use Plastic Items and Their Substitution
Single-use plastic is having a significant environmental impact and its reduction is a mandatory step to reduce plastic pollution worldwide. Indeed, the time that a plastic item can persist in the environment is very long and it is well known that it can produce devastating effects in particular in seas and oceans. Moreover, production, use and disposal of plastic items have a significant impact also on the greenhouse effect; this can be estimated in a life cycle approach, by evaluating their c…

Green HPC: An analysis of the domain based on Top500
Abdessalam Benhari (LIG, DATAMOVE), Denis Trystram (UGA, DATAMOVE), Fanny Dufoss\'e (DATAMOVE), Yves Denneulin, Fr\'ed\'eric Desprez
https://arxiv.org/abs/2403.17466

Green HPC: An analysis of the domain based on Top500
The demand in computing power has never stopped growing over the years. Today, the performance of the most powerful systems exceeds the exascale and the number of petascale systems continues to grow. Unfortunately, this growth also goes hand in hand with ever-increasing energy costs, which in turn means a significant carbon footprint. In view of the environmental crisis, this paper intents to look at the often hidden issue of energy consumption of HPC systems. As it is not easy to access the da…

Good point:
"The industry could prioritize using less energy, build more efficient models and rethink how it designs and uses data centres. As the BigScience project in France demonstrated with its BLOOM model, it is possible to build a model of a similar size to OpenAI’s GPT-3 with a much lower carbon footprint. But that’s not what’s happening in the industry at large."

Generative AI’s environmental costs are soaring — and mostly secret
First-of-its-kind US bill would address the environmental costs of the technology, but there’s a long way to go.

Active flow control of a turbulent separation bubble through deep reinforcement learning
Bernat Font, Francisco Alc\'antara-\'Avila, Jean Rabault, Ricardo Vinuesa, Oriol Lehmkuhl
https://arxiv.org/abs/2403.20295

Active flow control of a turbulent separation bubble through deep reinforcement learning
The control efficacy of classical periodic forcing and deep reinforcement learning (DRL) is assessed for a turbulent separation bubble (TSB) at $Re_τ=180$ on the upstream region before separation occurs. The TSB can resemble a separation phenomenon naturally arising in wings, and a successful reduction of the TSB can have practical implications in the reduction of the aviation carbon footprint. We find that the classical zero-net-mas-flux (ZNMF) periodic control is able to reduce the TSB by 15…

Blockchain-enabled Energy Trading and Battery-based Sharing in Microgrids
Abdulrezzak Zekiye, Ouns Bouachir, \"Oznur \"Ozkasap, Moayad Aloqaily
https://arxiv.org/abs/2404.16462

Blockchain-enabled Energy Trading and Battery-based Sharing in Microgrids
Carbon footprint reduction can be achieved through various methods, including the adoption of renewable energy sources. The installation of such sources, like photovoltaic panels, while environmentally beneficial, is cost-prohibitive for many. Those lacking photovoltaic solutions typically resort to purchasing energy from utility grids that often rely on fossil fuels. Moreover, when users produce their own energy, they may generate excess that goes unused, leading to inefficiencies. To address …

It's funny that the 'Cloud' is anything but: it's rather a set of very concrete basements full of computers connected by lots of underground and underwater cabling.
I wonder whether a different name would have made more evident the energetic and infrastructural costs of all this.
Hat tip: @…

783-MHz fundamental repetition rate, Er-doped all-fiber ring laser mode-locked by carbon nanotubes
Maolin Dai, Bowen Liu, Yifan Ma, Takuma Shirahata, Ruoao Yang, Zhigang Zhang, Sze Yun Set, Shinji Yamashita
https://arxiv.org/abs/2404.11165

783-MHz fundamental repetition rate, Er-doped all-fiber ring laser mode-locked by carbon nanotubes
We have demonstrated 783-MHz fundamental repetition rate from a compact and robust Er-doped all-fiber ring laser mode-locked by carbon nanotubes (CNT), with pulse width of 623 fs at center wavelength of 1562 nm. To the best of our knowledge, this is the highest fundamental repetition rate has been reported from an all-fiber ring laser. By using CNT saturable absorber (SA), a relatively low self-starting pump threshold of 108 mW is achieved. The laser has a very compact footprint less than 10 cm…

Exploring Green AI for Audio Deepfake Detection
Subhajit Saha, Md Sahidullah, Swagatam Das
https://arxiv.org/abs/2403.14290 https://a…

Exploring Green AI for Audio Deepfake Detection
The state-of-the-art audio deepfake detectors leveraging deep neural networks exhibit impressive recognition performance. Nonetheless, this advantage is accompanied by a significant carbon footprint. This is mainly due to the use of high-performance computing with accelerators and high training time. Studies show that average deep NLP model produces around 626k lbs of CO\textsubscript{2} which is equivalent to five times of average US car emission at its lifetime. This is certainly a massive th…

"The ​‘clean cement’ projects getting $1.5B in Biden admin funds"
#US #USA #America #Cement

The 'clean cement' projects getting $1.5B in Biden admin funds
From carbon capture to alternative cement chemistries, the U.S. is funding a range of projects that aim to slash the enormous CO2 footprint of the cement industry.

Know your footprint -- Evaluation of the professional carbon footprint for individual researchers in high energy physics and related fields
Valerie Lang, Naman Kumar Bhalla, Simran Gurdasani, Pardis Niknejadi
https://arxiv.org/abs/2403.03308

Know your footprint -- Evaluation of the professional carbon footprint for individual researchers in high energy physics and related fields
Understanding the environmental impact of professional activities is becoming paramount in current times, especially within sectors that historically have had significant resource utilisation, such as High Energy Physics (HEP) and related fields. The young High Energy Physicists (yHEP) association launched the Know your footprint (Kyf) campaign to evaluate the CO$_\text{2}$-equivalent emissions generated by HEP-related research. This study delves into the carbon footprints associated with four …

This https://arxiv.org/abs/2302.10562 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Renewable Energy Integration Strategies: A Transmission Operator's Perspective
This paper aims to investigate the role of a transmission system operator within a carbon footprint reduction strategy incorporating carbon taxes and renewable generation subsidies in the decentralised energy market. Moreover, this manuscript offers insights into the influence of various compositions of aforementioned policies on generation mix and social welfare. For that, we employ an optimisation bi-level model in which a welfare-maximizing transmission system operator makes investments in t…

Prickly paddy melon weed enzymes show potential as sustainable cement alternative
https://www.abc.net.au/news/2024-02-21/prickly-paddy-melon-weed-cement-alternative-unisa-research/103492480

Prickly paddy melon weed enzymes show potential as sustainable cement alternative
Prickly paddy melon is a major problem for the Australian agricultural industry but researchers say it may have potential to reduce soil erosion and offset the construction industry's large carbon footprint.

This https://arxiv.org/abs/2306.00292 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCY_…

Sustainable AI Regulation
Current proposals for AI regulation, in the EU and beyond, aim to spur AI that is trustworthy (e.g., AI Act) and accountable (e.g., AI Liability) What is missing, however, is a robust regulatory discourse and roadmap to make AI, and technology more broadly, environmentally sustainable. This paper aims to take first steps to fill this gap. The ICT sector contributes up to 3.9 percent of global greenhouse gas (GHG) emissions-more than global air travel at 2.5 percent. The carbon footprint and wat…

#Taylor Swift is she a #DemocratParty #PsyOp or just a #Private #JetSetter

How Bad Are Taylor Swift's Private Jet Emissions? An Expert Explains.
Her penchant for luxury air travel can’t hurt you. Or can it?

#Taylor Swift is she a #DemocratParty #PsyOp or just a #Private #JetSetter

How Bad Are Taylor Swift's Private Jet Emissions? An Expert Explains.
Her penchant for luxury air travel can’t hurt you. Or can it?