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Impact of 700 years of Inuvialuit subsistence hunting on beluga whales

A team analyzed 45 zooarchaeological remains and compared findings with contemporary data to assess the effect of sustained subsistence harvests on beluga genetic diversity, population structuring, and foraging ecology. The study found no significant changes in genetic diversity or population structuring over time.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalProceedings of the National Academy of Sciences·DateAug 14, 2024

Dairy nutrition is leading the sustainability charge

New nutrition strategies could slash methane emissions from dairy cows by a staggering 60%, according to a Journal of Dairy Science review. Diet reformulation, using feed additives like seaweed and 3-NOP, may be key to achieving this goal.

SourceElsevier·JournalJournal of Dairy Science·TypeSystematic review·DateAug 13, 2024

"All of us urgently need to band together to pass a robust and just earth to future generations," says eminent environmental lawyer Edith Brown Weiss

Edith Brown Weiss advocates for a Planetary Trust to ensure a just and robust Earth system for present and future generations. She proposes six critical commitments for the UN Summit of the Future, including integrating the future into decision-making and practices.

SourceIOS Press·JournalEnvironmental Policy and Law·TypeSystematic review·DateAug 12, 2024

Eco-conscious fashionistas hampered by geographical barriers to return clothing

A new study reveals that eco-friendly activewear companies' post-consumer circular economy policies are hindered by geography, making them ineffective for global customers. The research found that many companies have take-back schemes but restrict them to domestic customers or specific locations, limiting their environmental impact.

SourceUniversity of Birmingham·JournalCambridge Journal of Regions Economy and Society·DateAug 11, 2024

Put your money where your mouth is to create healthier, greener food systems, Surrey expert urges governments

A study by University of Surrey researchers highlights the importance of public bodies investing in local food systems to create healthier communities. Community cafes and pantries have been shown to empower volunteers and promote knowledge sharing about food, while grant funding and council support can unlock new projects.

SourceUniversity of Surrey·JournalCities·TypeCase study·DateAug 5, 2024

Study examines urban forests across the United States

Researchers analyzed six US cities and found that tree species in parks were more drought-tolerant and reflected greater native biodiversity than those in residential yards. The study highlights the importance of planting drought-tolerant trees in urban areas to adapt to future climate change.

SourceDartmouth College·JournalFrontiers in Ecology and the Environment·TypeData/statistical analysis·DateJul 12, 2024

Water stored under artificial turf could make cities cooler and safer to play in

Researchers in the Netherlands have developed a self-cooling artificial turf system that stores rainwater under the surface, reducing surface temperatures by up to 35°C. This innovation makes sports fields safer for players and helps mitigate urban flooding, while also offering a durable and low-maintenance alternative to natural grass.

SourceFrontiers·JournalFrontiers in Sustainable Cities·TypeExperimental study·DateJul 9, 2024

Pinpointing coal plants to convert to nuclear energy, considering both practicality and community support

A comprehensive analysis of US coal power plants reveals feasibility for conversion to advanced nuclear reactors, providing valuable insights for policymakers and utilities. The study uses a GIS-based tool to evaluate socio-technical and economic factors, suggesting a broad spectrum of suitability levels across different locations.

SourceUniversity of Michigan·JournalEnergy Reports·DateJul 9, 2024

Why the U.S. food system needs agroecology

The US food system is dominated by industrial agriculture, which perpetuates global challenges like food insecurity and biodiversity loss. Agroecology offers a solution, prioritizing ecological and social sustainability without sacrificing one for the other.

SourceDartmouth College·JournalNature Food·TypeCommentary/editorial·DateJul 5, 2024

True scale of carbon impact from long-distance travel revealed

Long-distance travel has a substantial carbon footprint, with journeys over 50 miles accounting for 70% of emissions. Research suggests targeting long-distance travel may be more effective than current efforts to reduce emissions. Changing behavior and policy can maximize reductions in carbon emissions from passenger travel.

SourceUniversity of Leeds·JournalNature Energy·TypeData/statistical analysis·DateJul 2, 2024

Synthetic fuels and chemicals from CO₂: Ten experiments in parallel

Empa researchers have developed a system to investigate up to ten different reaction conditions for producing synthetic fuels from CO2. The system accelerates the discovery process by generating a large number of high-quality datasets, enabling scientists to make accelerated discoveries.

SourceSwiss Federal Laboratories for Materials Science and Technology (EMPA)·JournalNature Catalysis·TypeExperimental study·DateJun 27, 2024

Making remanufacturing profitable

Remanufacturing is a process that transforms end-of-life products into new ones, offering economic benefits and environmental advantages. Companies need to invest time and energy to adopt this approach, but it can lead to increased profitability and sustainability.

Risky path to meeting climate targets for Stockholm

Researchers at Linköping University assess Stockholm's climate strategy, finding a reliance on carbon capture technology without sufficient discussion of its risks. They recommend setting separate targets for emissions reduction and capturing CO2 to ensure clearer decision-making.

SourceLinköping University·JournalEnergy Research & Social Science·TypeCase study·DateMay 29, 2024

PolyU study reveals effectiveness of GBGI infrastructure in mitigating urban heat, proposing nine-stage framework for development of a sustainable city

The study found that green infrastructures such as botanical gardens, wetlands, and street trees are effective in cooling urban heat, with temperature reductions ranging from 9.63°C to 17.7°C. A nine-stage framework has been proposed to facilitate GBGI implementation and maximize benefits.

SourceThe Hong Kong Polytechnic University·JournalThe Innovation·DateMay 23, 2024

Study reveals consumers value animal welfare more than environmental sustainability when buying meat and dairy products

A new study found that consumers prioritize animal welfare, freshness, and quality over environmental sustainability when purchasing meat and dairy products. The research suggests that producers can market sustainably produced food products by highlighting their animal welfare credentials.

SourceUniversity of Portsmouth·JournalFood Quality and Preference·TypeSurvey·DateMay 16, 2024

Using solar energy to generate heat at high temperatures

Scientists at ETH Zurich have engineered a thermal trap that can deliver heat at temperatures of over 1000 degrees Celsius using solar radiation. This technology has the potential to decarbonize energy-intensive industries on a large scale, making it an important step towards reducing greenhouse gas emissions.

SourceETH Zurich·JournalDevice·DateMay 16, 2024

Alternative materials to plastics for packaging are not always more sustainable

A recent study analyzed 53 peer-reviewed Life Cycle Assessment studies and found that conventional plastics are not always the least environmentally friendly choice. Bioplastics emerge as a viable alternative for climate change and fossil resource depletion, but other environmental impact categories show some disadvantages. The analysi...

SourcePolitecnico di Milano·JournalWaste Management & Research The Journal for a Sustainable Circular Economy·TypeMeta-analysis·DateMay 16, 2024

Wind farms can offset their emissions within two years, new study shows

A new study published in the Journal of the Royal Society of New Zealand found that wind farms can offset their carbon emissions within two years. The research used data from a Harapaki onshore wind farm in Hawke's Bay, New Zealand, and found that the turbine can generate all the energy consumed across its life-cycle within six months.

SourceTaylor & Francis Group·JournalJournal of the Royal Society of New Zealand·DateMay 16, 2024

Optimal redistribution of nitrogen fertilizer among countries

Shifting excess nitrogen from rich countries to poor ones could increase crop production by 12%, with moderate/food insecure regions seeing significant gains in both fertilizer use and food output. Current levels of production could be maintained with only 53-68% of current nitrogen used through redistribution.

SourcePNAS Nexus·JournalPNAS Nexus·DateMay 14, 2024

Laser printing on fallen tree leaves produces sensors for medical and laboratory use

Researchers in Brazil have developed a novel method to produce electrochemical sensors using fallen tree leaves, offering an eco-friendly alternative to conventional substrates. The sensors were successfully tested for detecting dopamine and paracetamol concentrations, demonstrating their potential for medical and laboratory applications.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalACS Sustainable Chemistry & Engineering·DateMay 9, 2024

Fixin’ to be flexitarian: Scrap fish and invasive species can liven up vegetables

A new study suggests that incorporating seafood rich in umami, such as fish and shellfish, into vegetable dishes can boost their flavor and make them more appealing. The research uses a mathematical equation to calculate the umami content of various seafood options, finding that even small amounts can greatly enhance the taste.

SourceUniversity of Copenhagen - Faculty of Science·JournalInternational Journal of Gastronomy and Food Science·DateApr 29, 2024

Mobile device location data is already used by private companies, so why not for studying human-wildlife interactions, scientists ask

Researchers argue that mobility data can help understand human-wildlife interactions and inform policy decisions on sustainability-related issues. They propose aggregating datasets without personal identifiers to make them accessible to researchers, benefiting both conservation and private companies.

SourceCell Press·JournalCell Reports Sustainability·TypeCommentary/editorial·DateApr 26, 2024

New circuit boards can be repeatedly recycled

Researchers at the University of Washington developed a new PCB that performs on par with traditional materials and can be recycled repeatedly. The process uses a solvent to transform a type of vitrimer into a jelly-like substance, allowing solid components to be plucked out for reuse or recycling.

SourceUniversity of Washington·JournalNature Sustainability·DateApr 26, 2024

Recovering phosphorus from sewage sludge ash

A new method recovers phosphorus from sewage sludge ash through chemical and heat treatment, providing a valuable resource for industries. The process can be implemented with lower energy requirements and costs than conventional technologies, making it an attractive solution for addressing the depletion of phosphorus ores.

SourceHokkaido University·JournalResources Conservation and Recycling·TypeExperimental study·DateApr 26, 2024