At the UN climate summit (COP28) kicking off in Dubai next week, we can expect the nations of the world to issue a flurry of energy- and climate-related announcements, pledges, and plans. Like their global peers, African governments will be using COP28 to demonstrate their climate ambition, building on commitments they made at the inaugural African Climate Summit held three months prior in Nairobi.
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| http://dx.doi.org/10.1126/science.adl3462 | DOI Listing |
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Climate change drives plant diversity attrition at the summit of Mount Kenya.
New Phytol
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School of Life Sciences, Nanchang University, Nanchang, 330031, Jiangxi, China.
City Residents Play a Pivotal Role in Managing Global Food Security While Improving Human Health and Minimizing Environmental Footprints.
Nutrients
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Department of Thematic Studies of Environmental Change, Linköping University, 581 83 Linköping, Sweden.
Background/objectives: Improved global data allow for a new understanding of what impact the food we produce, eat and dispose of has on the environment, human health and Nature's resources. The overall goal is to guide decision-makers and individuals by providing in-depth knowledge about the effects of their dietary preferences on human and environmental health.
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Comparison of the Physicochemical Properties, Microbial Communities, and Hydrocarbon Composition of Honeys Produced by Different Species.
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College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
The chemical composition and quality of honey are influenced by its botanical, geographic, and entomological origins, as well as climatic conditions. In this study, the physicochemical characteristics, microbial communities, and hydrocarbon compounds of honey produced by , , , , and were elucidated. The physicochemical profile of the honey exhibited significant differences across species, including moisture content (18.
View Article and Find Full Text PDFKamchatka (southeastern Siberia) ice core records of dicarboxylic acids, oxocarboxylic acids and α-dicarbonyls since 1690s: A signal for the tropospheric oxidizing capacity.
Sci Total Environ
December 2024
Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Chubu Institute for Advanced Studies, Chubu University, Kasugai, Japan. Electronic address:
There has been much interest about how to identify an ice core signal for oxidizing capacity of the troposphere. This study broadly explains the air-snow transfer/deposition process using ice core records of dicarboxylic (DCAs), ω-oxocarboxylic as well as pyruvic acids and α-dicarbonyls, which are potentially formed by atmospheric oxidation of aromatic hydrocarbons from the continent, incloud-oxidation of isoprene and unsaturated fatty acids from the western North Pacific. An ice core (~152 m long, 304 years) was collected at an ice cap on the Gorshkov crater at the summit of Ushkovsky (56° 04'N, 160° 28'E, altitude: 3903 m) in the Kamchatka Peninsula from southeastern Siberia.
View Article and Find Full Text PDFIntrinsic and environmental drivers of pairwise cohesion in wild Canis social groups.
Ecology
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Wildlife Research and Monitoring Section, Ministry of Natural Resources and Forestry, Peterborough, Ontario, Canada.
Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group-level processes such as subgroup formation and fission-fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing cohesion remains a gap in our knowledge of cooperative behavior in animals.
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