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Check out our July issue

The July issue features work on Pacific Islands community-based adaptation, changing MJO impacts on the US West Coast, underestimated methane emissions, and plant hydraulics in Earth system models.

Latest Research

  • Analysis |

    The economic optimality of limiting global warming to below 2 °C has been questioned. This analysis shows that the 2 °C target is economically optimal in a version of the DICE model that includes updated climate science, climate damage estimates and evidence on social discount rates.

    • Martin C. Hänsel
    • , Moritz A. Drupp
    • , Daniel J. A. Johansson
    • , Frikk Nesje
    • , Christian Azar
    • , Mark C. Freeman
    • , Ben Groom
    •  & Thomas Sterner
  • Article |

    Climate change laws are shown to reduce national CO2 emissions by 0.78% in their first three years and 1.79% in the longer term. These reductions add up to 38 GtCO2 of avoided emissions for 1999–2016—equal to a year of CO2 emissions.

    • Shaikh M. S. U. Eskander
    •  & Sam Fankhauser
  • Article |

    A large proportion of anthropogenic heat energy is being taken up by ocean warming. Analysis of yearly 0–700 m ocean heat content maps from four different estimates shows that the longer the period over which regional trends are estimated, the larger the area of statistically significant warming.

    • Gregory C. Johnson
    •  & John M. Lyman
  • Article |

    Short-lived climate forcers (SLCFs) are thought to have short-term impacts relative to CO2. A compact Earth system model estimates SLCFs have caused substantial, long-term impacts via carbon–climate feedbacks since the pre-industrial era but species-dependent impacts of opposite sign largely cancel.

    • Bo Fu
    • , Thomas Gasser
    • , Bengang Li
    • , Shu Tao
    • , Philippe Ciais
    • , Shilong Piao
    • , Yves Balkanski
    • , Wei Li
    • , Tianya Yin
    • , Luchao Han
    • , Xinyue Li
    • , Yunman Han
    • , Jie An
    • , Siyuan Peng
    •  & Jing Xu
  • Article |

    The rate of warming in many marine ecosystems is faster in winter than in summer. Winter warming will impact fish species’ associations in the Mediterranean more than summer warming, and this has implications for how communities form and for future biodiversity, particularly in heavily fished areas.

    • Nicholas J. Clark
    • , James T. Kerry
    •  & Ceridwen I. Fraser
  • Article |

    Carbon dioxide removal technologies may be needed to meet climate targets. In this study, national surveys and deliberative workshops in the United States and the United Kingdom show that carbon dioxide removal is perceived as too slow to address the immediate climate crisis while not addressing the root causes of climate change.

    • Emily Cox
    • , Elspeth Spence
    •  & Nick Pidgeon

News & Comment

  • News & Views |

    Over the last two decades, many countries have passed laws addressing climate change and related areas. Research now shows that these laws make a difference to emission outcomes, but the pathways of impact require further research.

    • Navroz K. Dubash
  • Comment |

    Extreme weather damage databases report no significant heatwave impacts in sub-Saharan Africa since 1900, yet the region has experienced a number of heatwaves and will be affected disproportionately by them under climate change. Addressing this reporting discrepancy is crucial to assess the impacts of future extreme heat there.

    • Luke J. Harrington
    •  & Friederike E. L. Otto
  • Comment |

    Planned relocation of communities exposed to climate hazards is an important adaptation measure. However, relocation planning and policies must recognize and support those who do not wish to relocate, particularly groups with strong place attachment and for whom relocation may increase, not reduce, vulnerability.

    • Carol Farbotko
    • , Olivia Dun
    • , Fanny Thornton
    • , Karen E. McNamara
    •  & Celia McMichael
  • News & Views |

    Warming can change the vegetation growing season, but the response of autumn phenology to warming remains uncertain. Now research shows warming can lead to autumn greening by delaying leaf senescence, but carbon uptake is constrained by radiation.

    • Sujong Jeong