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  • For millennia, permafrost landscapes have gradually grown the foundation for a capillary hydrologic system. It is now being activated by unusual warmth.

    • Anna K. Liljedahl
    • Chandi Witharana
    • Elias Manos
    Comment
  • Fieldwork isn’t just about collecting data — it’s a deeply immersive experience that connects cryosphere researchers directly to the landscapes they study. Each moment in the field, across the permafrost, snow, and glaciers, fosters a profound appreciation for the responses of these environments to the changing climate and human activities. Nature Water asked three experts about their experiences and insights into fieldwork.

    • Yanhua Chen
    Q&A
  • Even though approaches to artificially reduce local glacier melt have been developed, they face considerable challenges on the larger scale. To mitigate the negative effects of an imminent loss of mountain glaciers, preserving the ice by reducing greenhouse gas emissions remains the most effective solution.

    • Matthias Huss
    World View
  • The ideal sharp cutoff of solutes by a porous membrane is not achievable yet. Prolonging the interactions between solutes and pores in isoporous membranes pushes the precise separation abilities further.

    Editorial
  • Mountain communities are at risk of various climate change-related disasters, including glacial lake outburst floods (GLOFs). Effective GLOF risk identification and management require a holistic consideration of the diverse controls and drivers of GLOFs. This Comment outlines primary challenges related to rapidly changing mountains and complex system response.

    • Adam Emmer
    Comment
  • Science funding could contribute more towards achieving the United Nations Sustainable Development Goals. Science–practitioner partnerships illustrate how a patient and outcome-based approach could improve water security for millions of vulnerable people.

    • Rob Hope
    • Katrina Jane Charles
    • Anna Nileshwar
    Comment
  • Not accounting for coupled land–water carbon fluxes can lead to flawed understanding and incorrect assessments of climate impact and feedback on the Arctic carbon cycle. There is a need for collaborative studies, between scientific disciplines and approaches, that integrate carbon transformations and fluxes across the Arctic land–water continuum.

    • Jan Karlsson
    World View
  • We publish the first article in a format aiming at discussing the process of translating research into something concretely useful for society.

    Editorial
  • Water can be a tool for peace and prosperity. But water can also create tensions if usage is unfairly shared. World Water Day 2024 focused on the importance of working together to make water a catalyst for a more peaceful society.

    Editorial
  • Access to clean water is a fundamental human right, yet over two billion worldwide lack this essential resource close to their homes. This scarcity fuels conflict and hampers development globally. Despite the situation’s gravity, I am steadfast in my belief that these challenges can be overcome.

    • Jan Eliasson
    World View
  • Water commons are water resources collectively managed and utilized by communities as common property to support their food security, traditions, and livelihoods. Water commons are under increasing pressure of acquisition, privatization, and grabbing. This Comment analytically defines the water commons, examines their vulnerability to grabbing, and discusses the associated water justice and environmental implications.

    • Paolo D’Odorico
    • Jampel Dell’Angelo
    • Maria Cristina Rulli
    Comment
  • Research on the ecological impacts of drought has predominantly focused on the scarcity of water supply, often overlooking divergent ecosystem water demands across vegetation types, regions, and time. These diverse ecosystem water demands need to be incorporated into an effective ecological drought monitoring and assessment framework.

    • Jiangpeng Cui
    • Anping Chen
    • Shilong Piao
    Comment
  • Rivers carry large quantities of carbon and form an important link between terrestrial, marine and atmospheric biogeochemical cycles, yet our observations of river carbon are severely limited. Here we provide a blueprint to build a global River Observation System that would improve our ability to observe and predict changes in this crucial piece of the global carbon cycle.

    • Joshua F. Dean
    • Tom J. Battin
    Comment
  • When the substrate for ecological interactions is the river network, the emerging universality of form is reflected in its function as ecological corridor, with implications.

    • Andrea Rinaldo
    World View