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  • Literature reviews can help to inform decision-making, yet they may be subject to fatal bias if not conducted rigorously as ‘systematic reviews’. Reporting standards help authors to provide sufficient methodological detail to allow verification and replication, clarifying when key steps, such as critical appraisal, have been omitted.

    • Neal Robert Haddaway
    • Biljana Macura
  • Until recently, national bans on fossil fuel-related activities were a taboo subject, but they are now becoming increasingly common. The logic of appropriateness that underpins such bans is key to understanding their normative appeal, and to explaining and predicting their proliferation.

    • Fergus Green
  • Ambition regarding climate change at the national level is critical but is often calibrated with the projected costs — as estimated by a small suite of energy–economic models. Weaknesses in several key areas in these models will continue to distort policy design unless collectively addressed by a diversity of researchers.

    • Alexander R. Barron
  • Awareness of the threats to mental health posed by climate change leads to questions about the potential impacts on climate scientists because they are immersed in depressing information and may face apathy, denial and even hostility from others. But they also have sources of resilience.

    • Susan Clayton
  • Research on climate change mitigation tends to focus on supply-side technology solutions. A better understanding of demand-side solutions is missing. We propose a transdisciplinary approach to identify demand-side climate solutions, investigate their mitigation potential, detail policy measures and assess their implications for well-being.

    • Felix Creutzig
    • Joyashree Roy
    • Elke U. Weber
  • The new rules of the EU ETS will fundamentally change its character. The long-term cap on emissions will become a function of past and future market outcomes, temporarily puncturing the waterbed and having retroactive impacts on GHG abatement from overlapping policies.

    • Grischa Perino
  • China recently announced its national emissions trading scheme, advancing market-based approaches to cutting greenhouse gas emissions. Its evolution over coming years will determine whether it becomes an effective part of China’s portfolio of climate policies.

    • Frank Jotzo
    • Valerie Karplus
    • Fei Teng
  • Well-intended climate actions are confounding each other. Cities must take a strategic and integrated approach to lock into a climate-resilient and low-emission future.

    • Diana Ürge-Vorsatz
    • Cynthia Rosenzweig
    • Shobhakar Dhakal
  • The Paris Agreement highlights the need for local climate leadership. The University Of California’s approach to deep decarbonization offers lessons in efficiency, alternative fuels and electrification. Bending the emissions curve globally requires efforts that blend academic insights with practical solutions.

    • David G. Victor
    • Ahmed Abdulla
    • Jim Williams
  • Meeting the ambitions of the Paris Agreement will require rapid and massive decarbonization of cities, as well as adaptation. Capacity and requirement differs across cities, with challenges and opportunities for transformational action in both the Global North and South.

    • William Solecki
    • Cynthia Rosenzweig
    • Diana Ürge-Vorsatz
  • A large number of published ecological studies fail to include basic information about the climate data used. In the interest of reproducibility and transparency, we offer recommendations for best practices that we urge Editors, authors, and reviewers to adopt in future publications.

    • Naia Morueta-Holme
    • Meagan F. Oldfather
    • David D. Ackerly
  • Climate change could increase fire risk across most of the managed boreal forest. Decreasing this risk by increasing the proportion of broad-leaved tree species is an overlooked mitigation–adaption strategy with multiple benefits.

    • Rasmus Astrup
    • Pierre Y. Bernier
    • Ryan M. Bright
  • Investors will play a major role, whether active or passive, in climate change mitigation. To enable prudent decision-making, we propose three physically based engagement principles that could be used to assess whether an investment is consistent with a long-term climate goal.

    • Richard J. Millar
    • Cameron Hepburn
    • Myles R. Allen
  • The Paris Agreement is based on emission scenarios that move from a sluggish phase-out of fossil fuels to large-scale late-century negative emissions. Alternative pathways of early deployment of negative emission technologies need to be considered to ensure that climate targets are reached safely and sustainably.

    • Michael Obersteiner
    • Johannes Bednar
    • Guido Schmidt-Traub
  • Debate over effective climate change communication must be grounded in rigorous affective science. Rather than treating emotions as simple levers to be pulled to promote desired outcomes, emotions should be viewed as one integral component of a cognitive feedback system guiding responses to challenging decision-making problems.

    • Daniel A. Chapman
    • Brian Lickel
    • Ezra M. Markowitz
  • The Paris Agreement has increased the incentive to verify reported anthropogenic carbon dioxide emissions with independent Earth system observations. Reliable verification requires a step change in our understanding of carbon cycle variability.

    • Glen P. Peters
    • Corinne Le Quéré
    • Pieter Tans