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  • Climate change and economic inequality are critical issues, and we still lack understanding of the interaction between them. Multi-model analysis shows how climate policies compatible with the goals of the Paris Agreement, including revenue-redistribution schemes, can reduce inequality—particularly in the short and medium terms.

    • Johannes Emmerling
    • Pietro Andreoni
    • Massimo Tavoni
    ArticleOpen Access
  • The dominant paradigm holding that science is always objective needs to be challenged. When scientists’ opinions about climate change and their own fears are seen as irrelevant, it suggests that science is separate from society; however, this perspective ultimately weakens climate science.

    • E. L. F. Schipper
    • S. S. Maharaj
    • G. T. Pecl
    Comment
  • Changes in nutrient availability can alter carbon storage and carbon dioxide emissions from tundra soils. Now, work shows that these responses can shift dramatically over long timescales of nutrient addition, by restructuring the interplay between plants and soil microorganisms.

    • Birgit Wild
    News & Views
  • By expanding on one of the longest-running ecosystem manipulation experiments in the world, we found that the substantial Arctic soil carbon losses observed in the first 20 years of experimentation were temporary. We present evidence suggesting that the Arctic soil carbon balance depends on complex plant–microbial interactions that can take decades to manifest.

    Research Briefing
  • Arctic warming is thought to lead to large losses in soil carbon stocks. Here a 35-year-long fertilization experiment in Alaska shows that increased shrub productivity and changes in plant–microbial feedbacks may eventually reverse trends of carbon loss and restore the soil carbon sink.

    • Megan B. Machmuller
    • Laurel M. Lynch
    • Matthew D. Wallenstein
    Article
  • The IPCC holds the gold standard for climate change scientific knowledge and authority at the science–policy interface. Here we reflect on our experience of the IPCC Sixth Assessment Report and discuss how diversity in authorship and inclusion of different disciplinary backgrounds can be improved.

    • Martina Angela Caretta
    • Shobha Maharaj
    Comment
  • A feasibility analysis reveals that carbon capture and storage capacity might be able to expand fast enough to meet the requirements of 2 °C climate pathways but will unlikely meet those for 1.5 °C. Moreover, carbon capture and storage is unlikely to capture and store more than 600 Gt of CO2 over the twenty-first century, which has implications for the global carbon budget.

    Research Briefing
  • More understanding of demand-side mitigation is needed for overall emissions reductions. Now, a study evaluates mitigation potential based on a cost–benefit approach, but gaps remain to fully leverage demand-side mitigation to achieve effective climate policies.

    • Lei Zhu
    • Pengfei Liu
    News & Views
  • The authors reveal distinct trends in surface and subsurface phytoplankton dynamics, highlighting the need for subsurface monitoring. Whereas subsurface phytoplankton respond to recent warming with biomass increases, surface phytoplankton show altered carbon-to-chlorophyll ratios but minimal biomass change.

    • Johannes J. Viljoen
    • Xuerong Sun
    • Robert J. W. Brewin
    ArticleOpen Access
  • Demand-side mitigation solutions are seen as an essential part for climate actions, yet their adoption is still lower than expected. Cost–benefit analysis shows that the main barriers lie in the non-pecuniary costs of behaviour switching, and highlights opportunities for targeted policy intervention.

    • Jie-Sheng Tan-Soo
    • Ping Qin
    • Xiaoxi Wang
    Article
  • Carbon capture and storage is a key component of mitigation scenarios, yet its feasibility is debated. An analysis based on historical trends in policy-driven technologies, current plans and their failure rates shows that a number of 2 °C pathways are feasible, but most 1.5 °C pathways are not.

    • Tsimafei Kazlou
    • Aleh Cherp
    • Jessica Jewell
    ArticleOpen Access
  • Tropical aboveground carbon is a crucial yet complex component of the terrestrial carbon budget. Here, remote observations reveal annual losses (from fire emissions and forest disturbances) and post-loss recovery of tropical aboveground carbon for 2010–2020, which overall resulted in tropical lands being a moderate carbon sink.

    Research Briefing
  • Declining youth mental health has been labelled a global crisis. Although raging wars are most emotionally salient, ecological crises such as climate change are more costly for the psychological health of young people.

    • Emma L. Lawrance
    News & Views
  • Ice melt from Antarctica is accelerating. Now, a study shows that more realistic treatment of how Earth’s mantle rebounds as Antarctic glaciers retreat can lower projections of mass loss and the associated sea-level rise.

    • Nicholas R. Golledge
    News & Views
  • The Filchner–Ronne and Ross ice shelves are two of the largest in Antarctica. Here the authors show their vulnerability to warming ocean conditions, where a transition to warmer waters in the ice shelf cavities could lead to accelerated ice loss and grounding line retreat.

    • Emily A. Hill
    • G. Hilmar Gudmundsson
    • David M. Chandler
    ArticleOpen Access
  • The authors use 12 years of broadscale survey data across 838 temperate and tropical coastal sites to investigate shifts in marine taxa range edges at the community level. They show that while some species respond rapidly to change, evidence for mass poleward migration is limited.

    • Yann Herrera Fuchs
    • Graham J. Edgar
    • Rick D. Stuart-Smith
    Article
  • Foreign investments in recent years drive the expansion of fossil fuel electricity generation in emerging economies, yet necessary quantification still lacks. This Article shows how overseas coal-fired power plants could drive future trajectories of CO2 emissions in host countries.

    • Peng Guo
    • Huizhong Shen
    • Shu Tao
    Article