Urban green spaces are associated with many health outcomes, but the mechanisms underlying these links remain unclear. One explanation is that biodiverse microbiomes in green spaces affect human health by modifying immune function. Our systematic review included studies that investigated the relationship between green space and either health or biodiversity. Reported effects of green space on health were generally positive, but 22% of the papers identified either no effect or negative effects. We also found that although green space was commonly associated with biodiversity, few green‐space health studies simultaneously examined biodiversity. Overreliance on cross‐sectional studies, various definitions of green space, and a lack of research in tropical and developing nations limit the conclusions that can be drawn. A better understanding of the biological aspects of contact with nature is required before city planners can optimize green spaces for health gains.

Non-technical summary: The sustainability concept seeks to balance how present and future generations of humans meet their needs. But because nature is viewed only as a resource, sustainability fails to recognize that humans and other living beings depend on each other for their well-being. We therefore argue that true sustainability can only be achieved if the interdependent needs of all species of current and future generations are met, and propose calling this ‘multispecies sustainability’. We explore the concept through visualizations and scenarios, then consider how it might be applied through case studies involving bees and healthy green spaces.

Spatially and temporally accurate information about infectious mosquito distribution allows for pre-emptive public health interventions that can reduce the burden of mosquito-borne infections on human populations. However, the labile nature of arboviruses, the low prevalence of infection in mosquitoes, the expensive labor costs for mosquito identification and sorting, and the specialized equipment required for arbovirus testing can obstruct arbovirus surveillance efforts. The recently developed techniques of testing mosquito expectorate using honey-baited nucleic acid preservation cards or sugar bait stations allows a sensitive method of testing for infectious, rather than infected, mosquito vectors. Here we report the results from the first large-scale incorporation of honey-baited cards into an existing mosquito surveillance program. During 4 months of the peak virus season (January–April, 2014) for a total of 577 trap nights, we set CO ₂ -baited encephalitis vector survey (EVS) light traps at 88 locations in South Australia. The collection container for the EVS trap was modified to allow for the placement of a honey-baited nucleic acid preservation card (FTA ^™ card) inside. After collection, mosquitoes were maintained in a humid environment and allowed access to the cards for 1 week. Cards were then analyzed for common endemic Australian arboviruses using a nested RT-PCR. Eighteen virus detections, including 11 Ross River virus, four Barmah Forest virus, and three Stratford virus (not previously reported from South Australia) were obtained. Our findings suggest that adding FTA cards to an existing mosquito surveillance program is a rapid and efficient way of detecting infectious mosquitoes with high spatial resolution.