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Template-Thermally Induced Phase Separation-Assisted Microporous Regulation in Poly(lactic acid) Aerogel for Sustainable Radiative Cooling.
Biomacromolecules
January 2025
National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China.
Herein, an eco-friendly and degradable poly(lactic acid) aerogel was prepared by combining a poly(ethylene glycol) template material with thermally induced phase separation. Due to the tailored pore size introduced by the template material, the aerogel exhibits high solar reflectance (92.0%), excellent thermal emittance (90.
View Article and Find Full Text PDFAssessment of greenhouse gas emissions and environmental impacts in the manufacturing process of thermoelectric coolers: A life-cycle impact perspective.
Heliyon
January 2025
Department of Environmental Science & Engineering, Ewha Womans University, South Korea.
A path to carbon neutrality requires the development of refrigeration units that use no refrigerant or emit less greenhouse gas (GHG), such as Thermoelectric coolers (TECs). Using the life cycle inventory assessment (LCIA), the environmental impacts of the manufacturing process of TECs were analyzed, including greenhouse gas emissions, human carcinogenic toxicity (HCT), terrestrial ecotoxicity (TE), freshwater ecotoxicity (FE), mineral resource scarcity (MRS), and fossil resource scarcity (FRS). The alumina plate manufacturing process produces the most GHG emissions because it uses a lot of electricity in the sintering process.
View Article and Find Full Text PDFCosts and benefits of maternal nest choice: Trade-offs between brood survival and thermal stress in bees.
Ecology
January 2025
Department of Biological Sciences, Brock University, St. Catharines, Ontario, Canada.
Optimal nest site selection is crucial in animals whose offspring are completely dependent on the shelter of a nest. Parental decisions influencing nest thermal conditions are particularly important because temperature strongly influences juvenile activity, metabolism, growth, developmental rate, survival, and adult body size. In small ectotherms such as bees, maternal decisions to nest in sun-exposed or shady sites can lead to marked differences in thermal microenvironments inside nests.
View Article and Find Full Text PDFAuto-Deposited Microparticle Composite Coating for Low-Cost and Efficient Daytime Radiative Cooling.
ACS Appl Mater Interfaces
January 2025
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
Radiative cooling is an excellent strategy for mitigating global warming, by enhancing heat fluxes away from the Earth, thus balancing the Earth's heat flow. However, for randomly particle-dispersed radiative cooling materials, the particle content as high as 94-96 wt % or 60 vol %, far exceeds the critical pigment percentage (40-50%) of traditional coatings, preventing its large-scale application. Here, inspired by particle deposition under gravity in solution, we demonstrate an auto-deposited SiO composite radiative cooling coating (ADRC) which reduces the amounts of particles required and lowers costs.
View Article and Find Full Text PDFSweating the small stuff: microclimatic exposure and species habitat associations inform climate vulnerability in a grassland songbird community.
Biol Lett
January 2025
Department of Forest and Wildlife Ecology, University of Wisconsin-Madison,1630 Linden Drive, Madison, WI 53706, USA.
Assessment of species' vulnerability to climate change has been limited by mismatch between coarse macroclimate data and the fine scales at which species select habitat. Habitat mediates climate conditions, and fine-scale habitat features may permit species to exploit favourable microclimates, but habitat preferences can also constrain their ability to do so. We leveraged fine-resolution models of near-surface temperature and humidity in grasslands to understand how microclimates affect climatic exposure and demographics in a grassland bird community.
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