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  • Water research has fallen into a ‘techno optimism’ that tries to solve all problems despite not asking fundamental questions, according to Stephanie Pincetl of the University of California, Los Angeles. She talks to Nature Sustainability about the challenges facing the field and science writ large.

    • Ryan Scarrow
  • China’s food demand is projected to grow and reshape its production and trade relations. A new study evaluates the consequent challenges for agricultural land, greenhouse gas emissions, fertilizer and irrigation water use in China and its trading partners.

    • Guolin Yao
    News & Views
  • Meeting China’s growing demand for food, especially for livestock products, will have huge environmental impacts domestically and globally. This study finds large increases in land, water, fertilizer and greenhouse gas emissions that vary based on openness of trade.

    • Hao Zhao
    • Jinfeng Chang
    • Michael Obersteiner
  • Our understanding of the impacts of oil spills highlights the urgency of preventing them. A new study considers public health and other effects of an oil spill from an abandoned Red Sea tanker.

    • Stephanie E. Chang
    News & Views
  • Dr Shailja Vaidya Gupta is Senior Adviser at the Office of the Principal Scientific Adviser to the Government of India. She tells Nature Sustainability about the challenges of climate negotiations from her country’s perspective, views are her own.

    • Aiora Zabala
  • As the climate crisis continues its deadly course, how much longer will it take for world leaders to act?

  • The possibility of a huge oil spill off the coast of Yemen, already in crisis, is increasingly likely. This study projects the likely spill extent and impacts to public health, food, water and air.

    • Benjamin Q. Huynh
    • Laura H. Kwong
    • David H. Rehkopf
    Article Open Access
  • Integrated assessment models are widely used to assess climate change mitigation strategies. Comparing scenarios from several integrated assessment models, a study now highlights the benefits and trade-offs of near-term mitigation to reduce mitigation challenges in the longer term.

    • Göran Berndes
    • Annette Cowie
    News & Views
  • Delaying climate mitigation requires large-scale carbon dioxide removal (CDR) in the second half of this century, with possible adverse effects. Under scenarios with no dependence on CDR technologies, this study examines the short- and long-term implications of climate mitigation for land-use and food systems.

    • Tomoko Hasegawa
    • Shinichiro Fujimori
    • Keywan Riahi
  • Agriculture’s ability to feed the world is limited by land and freshwater. This Perspective argues that scaling up seaweed aquaculture is needed to accommodate the 9+ billion people expected by 2050 and to meet the Sustainable Development Goals.

    • Carlos M. Duarte
    • Annette Bruhn
    • Dorte Krause-Jensen
  • Sustainability and resilience are priorities in agriculture. A new analysis of four experiments with a combined 46 years of data shows that intercropping — growing multiple crops together — can increase yields, yield stability and soil fertility.

    • Matthew R. Ryan
    News & Views
  • Research on energy and climate change mitigation is disconnected from the advancement of well-being. This Perspective proposes to relate energy use to individual well-being through consumption by bridging across social sciences, energy–economic models and climate policy analysis.

    • Narasimha D. Rao
    • Charlie Wilson
  • Proper management to mitigate and avoid algal blooms in drinking water is dependent on expertise. This study surveyed water managers across the United States to assess how knowledge is formed and disseminated, or how it is not.

    • Galen Treuer
    • Christine Kirchhoff
    • Francesca McGrath
  • Carbon pricing can alter income distribution. With a focus on Bangladesh, India, Indonesia, Pakistan, Philippines, Thailand, Turkey and Vietnam, this study compares four types of carbon pricing schemes and finds substantial variation in distributional effects across policy designs and countries.

    • Jan C. Steckel
    • Ira I. Dorband
    • Sebastian Renner