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Volume 1 Issue 3, March 2020

Volume 1 Issue 3

Pollution and perennials

California supplies two-thirds of the USA’s fruits and nuts; 80% of the world’s almonds are grown in the Golden State. Historical and future yield losses of valuable perennial crops due to tropospheric ozone and rising temperatures are modelled by Hong and colleagues — and indicate that clean air policies in the region have had, and can continue to have, a positive impact on yields of many of California’s most valuable perennial crops.

See Hong et al.

Image: Deborah Lee Rossiter / Alamy Stock Photo. Cover Design: Tulsi Voralia.


  • Editorial |

    East Africa is experiencing the worst desert locust outbreak in decades. Climate events have facilitated breeding of the swarming pest across the region, and with a surge in the locust population expected in coming weeks urgent action is needed to avert a humanitarian crisis.

Comment & Opinion

Books & Arts

Research Highlights

News & Views

  • News & Views |

    Historical and projected impacts of tropospheric ozone and climate change on California’s most valuable perennial crops indicate that opportunities exist to improve crop yields through pollution mitigation.

    • Justin McGrath
  • News & Views |

    Policy packaging offers citizens better scope for assessing trade-offs in policy attributes and policymakers the opportunity to make unpopular reforms, including those needed to achieve healthy and sustainable food system transformation, more palatable to their constituents.

    • Danielle Resnick


  • Perspective |

    Many cities have enough space to satisfy their population’s demand for fruits and vegetables. A conceptual framework based on the city of Sheffield, United Kingdom, highlights key challenges and opportunities for the realization of untapped urban horticultural potential.

    • Jill L. Edmondson
    • Hamish Cunningham
    • Duncan D. Cameron
  • Perspective |

    Livestock products are under scrutiny from environmental, human health and animal welfare perspectives. Future policy decisions must address and represent the complexity of the interactions between livestock and the Sustainable Development Goals, and beyond.

    • Zia Mehrabi
    • Margaret Gill
    • Navin Ramankutty


  • Article |

    Perennial crops such as fruits and nuts, important to dietary diversity and nutrition, represent almost 40% of California’s agriculture by economic value. Here, the impacts of climate change and ozone on historical and future yields of perennial crops in California are assessed.

    • Chaopeng Hong
    • Nathaniel D. Mueller
    • Steven J. Davis
  • Article |

    Policy packages for reducing the environmental impact of food systems were tested for acceptability through conjoint experiments in China, Germany and the United States. Achieving a sustainable food system may involve unpopular measures, but strategic policy bundling may increase citizen support for these measures.

    • Lukas Paul Fesenfeld
    • Michael Wicki
    • Thomas Bernauer

Food for Thought

  • Food for Thought |

    Over the past two millennia, dietary transitions among foragers in southern Africa have impacted their height, family size, disease rates, and nutrition. The shift to a sedentary life has brought with it a range of health and social issues. Yet, foraging remains important for food security and has unique cultural value.

    • Robert Hitchcock


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