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Mitigating ice sheets and mountain glaciers melt with geoengineering.
Sci Total Environ
January 2025
Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.
The inadequacy of current emission reduction measures necessitates exploring innovative approaches to address the critical issue of ice sheet and mountain glacier melting. Geoengineering emerges as a potential solution to mitigate severe cryospheric changes. This review systematically examines geoengineering techniques tailored to ice sheets and mountain glaciers, analyzing their efficacy, risks, and limitations based on existing literature.
View Article and Find Full Text PDFAdaptation of clinical bacteriology techniques for remote polar research.
Appl Environ Microbiol
January 2025
Clinical Infection Department, Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom.
Unlabelled: Remote polar regions offer unique opportunities and significant challenges for antimicrobial resistance research in a near-pristine environment. While core microbiology techniques continue to have an important role in supporting environmental research, the severe cold climate presents considerable challenges to laboratory research. We explore adaptations required for core bacteriology investigations in polar regions on an unsupported remote expedition c.
View Article and Find Full Text PDFCrafting Hollow Spheres via Bulk Ice Melting with ppb-Level Gas Sensing Performance.
J Am Chem Soc
January 2025
National Center for International Research on Green Optoelectronics, Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.
Ice melting, a common yet complex phenomenon, remains incompletely understood. While theoretical studies suggest that preexisting defects in ice generate "off-lattice" water molecules, triggering bulk ice melting, direct experimental evidence of their form has been lacking as the transparent and transient nature of ice poses significant challenges for observation with current techniques. Here, we introduce an ice-melting-induced lyophilization (IMIL) technique that employs graphene-based nanoprobes to replicate and track liquid evolution within melting bulk ice.
View Article and Find Full Text PDFDiscovery of Laacher See eruption in speleothem record synchronizes Greenland and central European Late Glacial climate change.
Sci Adv
January 2025
Department of Climate and Environmental Physics, University of Bern, 3012 Bern, Switzerland.
To assess the impact of ongoing, historically unprecedented Arctic ice melting, precisely synchronized chronologies are indispensable for past analogs of abrupt climate change. Around 12,900 years before present (B.P.
View Article and Find Full Text PDFPreparation of Calcium Alginate-Based Hydrogels with Precisely Designed Centrosymmetric Geometries for Efficient Water Evaporation in Response to Different Solar Incidence Angles.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Hydrogels are popular materials for desalination and can significantly reduce the vaporization enthalpy of water; however, there are few reports on hydrogels with a controllable multilevel structural design for water evaporation. Herein, a calcium alginate and traditional Chinese ink-based evaporator (CIE) are proposed and fabricated using directed freezing technology to construct radial channels, followed by freeze-drying and physical cross-linking. Because of the squeezing of ice crystals and the shaping effect of the PDMS template, the prepared evaporator exhibits a sea-urchin-shaped highly geometrical centrosymmetric structure with numerous multilevel pore channels, which promotes the rapid transport of water under different solar incidence angles as the sun rotates as well as overcomes the structural shrinkage of the hydrogel caused by insufficient water supply.
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