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Bamboo Tissue Paper May Not Be as Eco-Friendly as You Think
6 months ago
- Bamboo tissue paper from China may not be as eco-friendly as believed due to higher emissions from coal-reliant power grids.
- Research from NC State University found Chinese bamboo tissue emits 2,400 kg CO2eq/ton, compared to 1,824 kg CO2eq/ton for U.S. wood-based tissue.
- Bamboo production processes are similar to wood, and emissions differences disappear in regions with cleaner energy grids.
- The study highlights that production technology, not fiber type, is more critical for reducing carbon footprints.
- Chinese bamboo tissue also underperforms in smog formation, respiratory effects, and ecotoxicity compared to wood-based options.
- The Sustainable & Alternative Fibers Initiative (SAFI) at NC State supports research on fiber sustainability.
Family Mart Designed Cute Teary-Eyed Stickers to Combat Food Loss
6 months ago
- Family Mart, a major Japanese convenience store chain, introduced teary-eyed stickers to reduce food waste.
- The stickers, placed on near-expiration foods, offer discounts and raise awareness about food waste.
- The design was chosen based on consumer sympathy and effectiveness in highlighting the food waste issue.
- Feedback has been positive, with an expected reduction of 3,000 tons of food waste annually.
- Family Mart now offers free stickers for various foods and encourages all shop owners to use them.
New South Korean national law will turn large parking lots into solar farms
6 months ago
- South Korea mandates solar canopies for parking lots with more than 80 spaces, including existing ones.
- The law aims to expand renewable energy, create jobs, and stabilize the local grid.
- Solar canopies provide shade, protect vehicles from weather, and help preserve EV battery range.
- The initiative maximizes land use efficiency and offers public comfort during hot weather.
- Similar projects in the US, like in Arizona and New York, show potential benefits.
- Solar carports can significantly reduce carbon emissions and energy costs.
- EnergySage is recommended for comparing solar installer quotes and finding competitive pricing.
The Problem with Farmed Seafood
6 months ago
- Anchoveta and other forage fish have been overharvested, with 90% used for fishmeal and oil rather than direct human consumption.
- Aquaculture relies heavily on wild-caught forage fish, creating a bottleneck that threatens marine ecosystems and food security.
- The F3 Challenge incentivizes the development of marine-animal-free fish feed to reduce reliance on wild fish stocks.
- Innovations include plant-based blends, algae-derived omega-3s, insect protein, and microbial fermentation to replace fishmeal.
- Alternative feeds not only protect forage fish populations but also enhance aquaculture's sustainability and resilience.
- The shift to fish-free feed could transform seafood labeling and consumer awareness, similar to 'grass-fed' beef.
- Collaborative efforts like the Feed Innovation Network promote open sharing of research and feed formulations.
- Sustainable aquaculture is critical for global food security, ecosystem health, and climate resilience.
Factory Farming Is a Blight
6 months ago
- The author describes a British country-girl upbringing where animals were respected and cared for, reflecting a broader trend of improved animal welfare in many nations.
- Despite advancements in animal welfare, modern factory farming has created the worst conditions for domesticated animals, with most pigs, chickens, and cows in the U.S. living in tightly confined, unnatural environments.
- Factory farming prioritizes economic efficiency over animal welfare, leading to practices like gestation crating for pigs and overcrowding for chickens, causing immense suffering.
- Factory farming poses significant risks to human health, including antibiotic resistance, potential pandemics, and exposure to synthetic hormones linked to cancer and fertility issues.
- Environmental damage from factory farms includes untreated animal waste, which harms local communities and ecosystems, with some farms producing more waste than entire cities.
- Public opinion overwhelmingly opposes factory farming, yet political and financial incentives, driven by industry lobbying, continue to support its expansion.
- Government regulations, such as the EATS Act and Ag-Gag laws, often favor large corporations, undermining efforts to improve animal welfare and environmental standards.
- Solutions to factory farming require government intervention, corporate responsibility, and technological innovation, such as alternative proteins and in-ovo sexing machines.
- Denmark and Germany have made strides in promoting higher-welfare farming and banning cruel practices, showing that change is possible with political will.
- Technological advancements, like cultivated meat, offer a promising path away from factory farming, though regulatory and industry opposition remains a challenge.
The labour and resource use requirements of a good life for all
6 months ago
- The study uses multi-regional input-output analysis to assess the labour, energy, emissions, and material use required to meet basic needs.
- Two scenarios are analyzed: a 'decent living' scenario with bare necessities and a 'good life' scenario based on UK minimum living standards.
- The 'decent living' scenario requires an 18-hour workweek but fails to provide essential needs, while the 'good life' scenario requires a 46-hour workweek.
- Current UK labour footprint is 65 hours per week, sustained partly by importing labour from other countries.
- Both scenarios show substantial reductions in energy use, emissions, and materials compared to current UK levels.
- The study concludes that limiting consumption to basic needs is insufficient for sustainability; changes to provisioning systems are also needed.
The modern homes hidden inside ancient ruins
6 months ago
- The Parchment Works in Northamptonshire is a Grade II-listed Victorian house extended with a contemporary design within the ruins of a 17th-century parchment factory.
- Will Gamble Architects designed lightweight, transparent 'boxes' to preserve the historic walls while adding modern living spaces.
- Renovating ruins often costs 30% more than new builds due to structural uncertainties and preservation challenges.
- The Cowshed in Gloucestershire, an 18th-century barn, was transformed into a modern home using timber pods and salvaged original materials.
- Historic England’s Heritage At Risk register lists nearly 5,000 endangered buildings, highlighting the importance of preservation.
- Count Benedikt Bolza has restored 50 abandoned farmhouses on the Reschio Estate in Italy, selling them for over €12mn each.
- A derelict hardware store in Mallorca was converted into a modern four-bedroom townhouse with a pool, listed for €1.72mn.
- Bergmeisterwolf’s South Tyrol holiday home rebuilt a ruined farmhouse’s stone wall traditionally, shielding a new wooden-clad structure.
- Preservation projects blend sustainability with cultural respect, making historic buildings functional for the future.
An Italian Company Builds the First Known Propellantless Space-Propulsion System
6 months ago
- Genergo, an Italian company, has developed the world's first propellantless space-propulsion system, validated across three space missions.
- The system converts electrical energy into thrust via electromagnetic impulses, eliminating the need for propellant, reducing mass, volume, and operational risks.
- It is scalable, operates with modest power, and is highly sustainable, using no hazardous materials or pressurized components.
- Successfully tested in orbit with over 700 hours of operation across three SpaceX Falcon 9 missions (Transporter-5, -6, -9) hosted on D-Orbit’s ION Satellite Carrier.
- Achieved TRL 7–8 maturity, with measurable acceleration/deceleration observed during motor activation in long-duration tests.
- Collaborated with Politecnico di Milano (DEIB, DAER) and an independent tech firm for validation and analysis.
- First commercial application: controlled deorbit to guide satellite re-entry and ensure burn-up at mission end.
DFW deploys SIX new Striker Volterra Electric ARFF 6×6 fire trucks
6 months ago
- Oshkosh's Striker Volterra Electric ARFF vehicles are now in use at Dallas Fort Worth International Airport, marking a significant step in modernizing the airport's emergency response fleet.
- These electric ARFF vehicles feature advanced battery technology, enabling zero-emission operation during standby and low-speed tasks, with a diesel generator for high-power demands.
- The Striker Volterra Electric ARFF is designed for rough terrain and damaged runways, carrying more water, equipment, and personnel than conventional fire trucks.
- DFW's transition to these vehicles aims to reduce response times, improve operational efficiency, and enhance environmental sustainability by using fluorine-free firefighting foam.
- The electric powertrain provides immediate torque, quieter operation, and eliminates firefighter exposure to diesel exhaust 99% of the time.
- Oshkosh emphasizes the Striker Volterra Electric ARFF as a forward-thinking solution for airports prioritizing sustainability and operational efficiency.
AI is guzzling energy for slop content
6 months ago
- AI is often criticized for high energy consumption and emissions, but some argue it can help solve the climate crisis.
- The AI Climate Institute was launched to promote AI as a tool for environmental solutions in developing countries.
- AI can optimize public transit, agriculture, and energy grids, and improve weather forecasting for climate disasters.
- AI can monitor emissions and biodiversity, helping predict short-term and long-term environmental changes.
- A report suggests AI could reduce global greenhouse gases by 3.2bn to 5.4bn tonnes in the next decade.
- Critics highlight the environmental cost of AI, including increased electricity and water use by data centers.
- By 2030, AI growth in the US could add 44m tons of CO2, equivalent to 10m gasoline cars.
- AI could also optimize fossil fuel production, potentially unlocking an extra trillion barrels of oil.
- While 'AI for good' has potential, it remains a small niche compared to profit-driven AI applications.
- The environmental impact of AI is alarming, with most of its use focused on profit rather than sustainability.
Geothermal energy might be the baseload revolution we've been looking for
6 months ago
- Iceland's transition to geothermal energy reduced reliance on fossil fuels from 75% to nearly 100% for heating and 25% for electricity.
- The Iceland Deep Drilling Project (I.D.D.P.) accidentally hit magma, creating the world's hottest geothermal well, producing 10x more energy than a regular well.
- Geothermal energy is carbon-free, available 24/7, and leaves a small footprint, but upfront costs are high.
- Enhanced Geothermal Systems (E.G.S.) use fracking technology to access geothermal energy in non-volcanic regions, pioneered by companies like Fervo Energy.
- Geothermal heating systems are being adopted in urban projects, such as St. Patrick’s Cathedral in NYC and district heating in Spain and Colorado.
- Zambia is exploring geothermal energy to supplement hydropower, which has been unreliable due to droughts.
- Investment in geothermal energy has surged, with tech giants like Google and Microsoft adopting it for data centers.
- Geothermal energy is seen as a reliable, clean, and eventually cheap energy source, appealing to both environmentalists and energy companies.
Room-temperature processible ceramics enable sustainable electronics
5 months ago
- MIT Design Intelligence Lab created Geolectric, a sustainable lantern using alkaline-based geopolymers.
- Geolectric features a proximity sensor and LEDs that intensify when a hand approaches, lighting fully upon touch.
- Geopolymers are low-carbon materials made at room temperature, reducing CO2 emissions and waste.
- The material allows embedding electronics during shaping, eliminating visible seams and gaps.
- Geopolymers are currently used in infrastructure but show potential for consumer products like kitchen counters and outdoor furniture.
- Geolectric was a gift to Irish president Mary Robinson, symbolizing welcome, with a replica at MIT.
- The project explores sustainable alternatives to traditional consumer electronics materials like plastic and rubber.
Four-Fifths of the Population Now Live in Urban Areas
5 months ago
- Over 80% of the global population now lives in urban areas, a figure expected to rise further.
- The UN's World Urbanisation Prospects report used a standardized definition for urban areas for the first time, classifying them as cities with at least 50,000 people and a density of 1500 per km² or towns with 5000 people and 300 per km².
- By 2050, 83% of the world's population is projected to live in urban regions, with rural populations peaking in the 2040s before declining.
- Urban population growth is driven by internal migration in Asia, international migration in Europe and North America, and higher birth rates in sub-Saharan Africa.
- Urbanization impacts the environment and health, with potential for both harm (e.g., urban sprawl, air pollution) and benefits (e.g., efficient public transport, better healthcare access).
- The UN's sustainable development goal aims to make cities inclusive, safe, resilient, and sustainable by 2030, with urbanization data aiding climate change policies.
AWS's Project Rainier: the most powerful computer for training AI
5 months ago
- Project Rainier is now operational, featuring one of the world's largest AI compute clusters with nearly half a million Trainium2 chips.
- AWS deployed Project Rainier in less than a year, with partner Anthropic already using it to build and deploy its AI model, Claude.
- Claude is expected to utilize over 1 million Trainium2 chips by the end of 2025, enhancing its intelligence and accuracy.
- Project Rainier is designed as an 'EC2 UltraCluster of Trainium2 UltraServers,' providing unprecedented compute power for AI training.
- Trainium2 chips are specialized for AI, capable of trillions of calculations per second, far surpassing human capabilities.
- UltraServers combine four physical Trainium2 servers with 16 chips each, connected via high-speed NeuronLinks for efficient data transfer.
- AWS's vertical integration allows optimization across the entire technology stack, from chip design to data center architecture.
- AWS is committed to sustainability, matching 100% of its electricity consumption with renewable energy and improving water efficiency.
- Project Rainier sets a new standard for AI compute power, enabling breakthroughs in fields like medicine and climate science.
Apple's Using 3D Printing in the iPhone Air
5 months ago
- Apple's iPhone Air features a 3D-printed USB-C port made from recycled titanium, showcasing advanced engineering and sustainability efforts.
- The 3D printing process, using laser powder bed fusion, saves 33% to 50% in material consumption compared to traditional methods.
- Microscope analysis revealed a unique 'crop circle' pattern on the USB-C port, suggesting the use of pulsed laser ablation for precision.
- Apple's choice of 3D printing aligns with its carbon neutrality goals, saving over 400 metric tons of titanium annually.
- The 'aerospace grade' titanium used is a custom alloy, likely recycled from Apple's own manufacturing waste, adding ferrochrome for 3D printing suitability.
- Despite the innovation, the 3D-printed parts do not significantly impact repairability, as Apple does not release print files for public use.
- The technology's current application is limited to small, low-volume parts, indicating a cautious approach to scaling 3D printing in manufacturing.
The Deep Ocean Is a Global Public Good
5 months ago
- Humans are drawn to distant, luminous objects like stars but often ignore the mysterious and vital deep ocean.
- The deep ocean is Earth's largest biome, older than forests, and more pressurized than any mine, yet remains largely unexplored.
- Deep ocean ecosystems regulate Earth's climate, store carbon, cycle nutrients, and absorb 90% of heat, making them crucial for planetary health.
- Human activities like deep-sea trawling and oil drilling threaten these ecosystems, despite their importance to climate and biodiversity.
- Scientists and policymakers advocate for deep ocean regeneration, moving beyond conservation to repair and reciprocity.
- The Deep Blue Initiative promotes sustainable exploration, focusing on marine biotechnology, deep ocean energy, and marine CO₂ removal.
- Marine biotechnology leverages deep-sea microbes for enzymes that can withstand extreme conditions and break down pollutants.
- Deep ocean energy, like geothermal and hydrogen sources, offers low-emission alternatives to fossil fuels.
- Marine CO₂ removal techniques, such as alkalinity enhancement, could help rebalance the carbon cycle.
- New financial mechanisms, like the Nature Capital Fund and FOAK Project Finance, support long-term, ethical deep ocean research and innovation.
- The deep ocean is not a resource to exploit but a vital system requiring stewardship, curiosity, and sustainable governance.
A Man Powers His Home for 8 Years Using 1k Recycled Laptop Batteries
5 months ago
- A man powered his home for eight years using over 1,000 recycled laptop batteries.
- The DIY system, started in 2016, combines solar panels and reused batteries for off-grid energy.
- Initially, it used a 1.4 kW solar panel system, a forklift battery, and basic inverters.
- The system expanded to include custom-assembled battery packs with 100 Ah capacity each.
- Uneven battery discharge was resolved by rearranging and adjusting cells for efficiency.
- No battery replacements were needed over eight years, and the system runs without major issues.
- The setup now includes 24 solar panels (440W each) for reliable power generation.
- The project highlights the potential of repurposing e-waste for sustainable energy solutions.
Show HN: Mu – The Micro Network
5 months ago
- Big tech prioritizes profit over user well-being, fostering addictive behaviors.
- Mu Network proposes rebuilding services without ads, algorithms, or exploits.
- Initial offerings include API, PWA, LLM chat, RSS news, YouTube search, and micro-blogging.
- Upcoming features: private mail, wallet for credits, utilities like QR scanner, and a services marketplace.
- Mu operates on a membership model with a subscription fee for sustainability and user influence.
- Benefits include ad-free, algorithm-free experience and direct communication with the development team.
- Installation requires Go, setting up environment variables, and obtaining API keys for YouTube and Fanar.
- Launch the app with 'mu --serve' and access via localhost:8081.
Plastic can be programmed to have a lifespan of days, months or years
5 months ago
- Chemical additions mimicking natural polymers like DNA can create plastics that degrade in days to years, reducing environmental litter.
- In 2022, over 250 million tonnes of plastic were discarded globally, with only 14% recycled; the rest was burned or buried.
- Researchers at Rutgers University are developing plastics with tunable lifespans that degrade quickly in compost or nature.
- Natural polymers (e.g., DNA) degrade easily due to 'neighbouring groups' that aid in breaking polymer chains—unlike synthetic plastics.
- Artificial chemical structures mimicking these groups were added to new plastics, enabling controlled degradation.
- Potential applications include food packaging and short-lived consumer materials, but not long-term structural components.
- Challenges remain: ensuring non-toxic degradation byproducts and enabling breakdown without UV light (e.g., in buried plastics).
Stopping bad guys from using my open source project (feedback wanted)
5 months ago
- The author maintains a popular open-source package and wants to prevent its use by 'bad guys' and large corporations.
- They highlight exploitation in open-source, citing examples where large companies benefit without giving back.
- References include slides from curl's maintainer, articles on OSS value, and the societal impact of open-source.
- The author questions the ethics of open-source licenses, especially 'freedom 0' (freedom to use for any purpose).
- They seek to shift open-source norms from 'free for anyone' to 'not for evil' and ask for community feedback.
- Specific questions include changing the MIT License, collective action, and raising awareness via blogs or documentation.

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#sustainability

Bamboo Tissue Paper May Not Be as Eco-Friendly as You Think

Family Mart Designed Cute Teary-Eyed Stickers to Combat Food Loss

New South Korean national law will turn large parking lots into solar farms

The Problem with Farmed Seafood

Factory Farming Is a Blight

The labour and resource use requirements of a good life for all

The modern homes hidden inside ancient ruins

An Italian Company Builds the First Known Propellantless Space-Propulsion System

DFW deploys SIX new Striker Volterra Electric ARFF 6×6 fire trucks

AI is guzzling energy for slop content

Geothermal energy might be the baseload revolution we've been looking for

Room-temperature processible ceramics enable sustainable electronics

Four-Fifths of the Population Now Live in Urban Areas

AWS's Project Rainier: the most powerful computer for training AI

Apple's Using 3D Printing in the iPhone Air

The Deep Ocean Is a Global Public Good

A Man Powers His Home for 8 Years Using 1k Recycled Laptop Batteries

Show HN: Mu – The Micro Network

Plastic can be programmed to have a lifespan of days, months or years

Stopping bad guys from using my open source project (feedback wanted)