Agriculture is the single largest source of anthropogenic non-carbon dioxide (non-CO) emissions. Reaching the climate target of the Paris Agreement will require significant emission reductions across sectors by 2030 and continued efforts thereafter. Here we show that the economic potential of non-CO emissions reductions from agriculture is up to four times as high as previously estimated. In fact, we find that agriculture could achieve already at a carbon price of 25 $/tCOeq non-CO reductions of around 1 GtCOeq/year by 2030 mainly through the adoption of technical and structural mitigation options. At 100 $/tCOeq agriculture could even provide non-CO reductions of 2.6 GtCOeq/year in 2050 including demand side efforts. Immediate action to favor the widespread adoption of technical options in developed countries together with productivity increases through structural changes in developing countries is needed to move agriculture on track with a 2 °C climate stabilization pathway.
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http://dx.doi.org/10.1038/s41467-018-03489-1 | DOI Listing |
Sci Total Environ
January 2025
State Key Laboratory of Marine Resource Utilization in South China Sea, School of Ecology, School of Marine Science and Engineering, Hainan University, Haikou, Hainan, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, Hainan, China. Electronic address:
The mangrove ecosystems store a significant amount of "blue carbon" to mitigate global climate change, but also serve as hotspots for greenhouse gases (GHGs: CO, CH and NO) production. The CH and NO emissions offset mangrove carbon benefits, however, the extent of this effect remains inadequately quantified. By applying the 36 h time-series observations and mapping cruises, here we investigated the spatial and temporal distribution of GHGs and their fluxes in Dongzhaigang (DZG) bay, the largest mangrove ecosystem in China, at tidal and monthly scales.
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January 2025
Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton South, Melbourne, Victoria 3169, Australia; Department of Agricultural Economics, University of the Free State, Bloemfontein 9300, South Africa.
Agricultural systems are important emission sources of non-CO greenhouse gases (GHGs), including the relatively short-lived GHG methane (CH). As a pivotal emitter, China's CH emissions have received wide attention. For the first time, this study applied an indicator of radiative forcing-based climate footprint (RFCF) to compare the climate impacts of China's on-farm non-CO GHG emissions including CH and nitrous oxide (NO).
View Article and Find Full Text PDFSci Rep
January 2025
Safety Technology Center of Guizhou Coal Mine Safety Supervision Bureau, Guiyang, 550081, Guizhou, China.
Anthropogenic emissions of non-CO greenhouse gases, such as low-concentration coal mine methane (cCH < 30 vol%), have a significant impact on global warming. The main component of coal mine methane is methane (CH), which is both a greenhouse gas and a high-quality clean energy gas. To study the combustion and heat transfer reactions of low-concentration coal mine methane in a catalytic oxidation device, a numerical simulation approach was employed to establish a model of the catalytic oxidation device that includes periodic boundary conditions, methane combustion mechanisms, and turbulent-laminar flow characteristics.
View Article and Find Full Text PDFJACS Au
December 2024
Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, 201804, Shanghai, China.
For the aim of achieving the carbon-free energy scenario, green hydrogen (H) with non-CO emission and high energy density is regarded as a potential alternative to traditional fossil fuels. Over the last decades, significant breakthroughs have been realized on the alkaline hydrogen evolution reaction (HER), which is a fundamental advancement and efficient process to generate high-purity H in the laboratory. Based on this, the development of the practical industry-oriented anion exchange membrane water electrolyzer (AEMWE) is on the rise, showing competitiveness with the incumbent megawatt-scale H production technologies.
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January 2025
Applied Chemistry and Environmental Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia. Electronic address:
Peatlands are important global stores of carbon. However, peatland disturbance, including climate change, can cause stored carbon to be released, shifting peatlands from net carbon sinks to net carbon sources. Yet, there is a paucity of data on the carbon cycling of Australian peatlands from which to inform effective management of the peatland carbon store.
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