Articles tagged with "greenhouse-gas-reduction"
Dairy digesters slash methane emissions by 80% on California farm
A recent University of California, Riverside study demonstrates that sealed dairy digesters can reduce methane emissions from manure by approximately 80% on a California dairy farm. Methane, a greenhouse gas over 80 times more potent than carbon dioxide over 20 years, is a significant contributor to global warming, with California dairy farms being major sources due to manure management. The study involved detailed atmospheric methane measurements before and after installing a digester at a Tulare County family-run dairy, revealing substantial emission reductions after addressing initial system leaks through collaboration between scientists, the system operator, and the farmer. Dairy digesters work by covering manure pits with gas-tight membranes that trap methane produced during anaerobic decomposition. The captured methane is then cleaned and repurposed as fuel, often powering trucks that would otherwise use diesel. While highly effective, digesters have limitations: they can leak if not properly maintained, do not reduce other pollutants like ammonia or fine particles, and require significant investment and regulatory permits, making them less feasible
energymethane-emissionsdairy-digestersrenewable-energygreenhouse-gas-reductionbioenergysustainable-agricultureOcean Protection Means Including Shipping in Countries’ Paris Climate Targets - CleanTechnica
At the 2025 UN Ocean Conference in Nice, environmental groups Opportunity Green, Seas At Risk, and Transport & Environment urged countries to include international shipping emissions in their Nationally Determined Contributions (NDCs) under the Paris Agreement ahead of COP30. They highlighted that shipping emissions represent a significant “glaring gap” in most countries’ climate plans despite falling under the Paris Agreement’s economy-wide emission coverage. The recent draft International Maritime Organization (IMO) Net-Zero Framework, pending adoption, marks a historic step by introducing the first legally binding global measure to reduce shipping greenhouse gas emissions through penalties and marine fuel standards. However, the groups emphasize that this IMO framework alone is insufficient to meet climate and equity goals without complementary national and regional policies. Incorporating shipping emissions into NDCs would provide countries with a legislative mandate to regulate and reduce the sector’s climate impact, offering certainty for industry investment in zero-emission technologies. The groups call on nations to implement policies supporting the IMO framework, promote innovation in zero-emission fuels, and assist developing countries, especially Small Island Developing States and Least Developed Countries, in meeting maritime environmental standards. Representatives stressed the urgent need for accountability and action, noting that shipping contributes significantly to ocean pollution and climate change but remains largely unregulated in national climate commitments. They argue that recognizing shipping emissions in NDCs aligns with broader ocean conservation goals and is a critical step toward meaningful climate action.
energyshipping-emissionsclimate-targetsmaritime-decarbonizationIMO-Net-Zero-Frameworkgreenhouse-gas-reductionsustainable-ocean-usePhòng thí nghiệm Anh tạo ra chất làm lạnh mới trong điều hòa
energymaterialscooling-technologybarocaloric-materialsgreenhouse-gas-reductionenergy-efficiencysustainable-coolingTriển vọng và thách thức của hydrogen phát thải thấp trong chiến lược chuyển đổi năng lượng toàn cầu
energyhydrogenrenewable-energygreenhouse-gas-reductionenergy-transitioncarbon-capturelow-emission-technology