Articles

A geospatial estimate of water scarcity in middle- to low-income countries finds that less than 37% of small-scale farms have irrigation. However, there exist considerable gaps in evidence for most commonly proposed, on-farm interventions.

To promote sustainable agriculture, small-scale producers must be included in the transformation of food systems. This scoping review finds that non-contract interactions provide producers with services such as credit, information and logistics.

A more sustainable agriculture is needed to address global food security and environmental degradation. This scoping review surveys the incentives for farmers to adopt sustainable practices benefiting their farms, the environment or both.

Reducing postharvest crop losses is vital to sustainably increase agricultural productivity. This analysis reveals a need for systematic assessment of postharvest loss reduction interventions across the value chain, targeting stakeholders beyond farmers, and for a more diverse range of food crops, to shape future policy decisions.

Exposure to volatile chemical products happens during or in the vicinity of product use and through ambient air; the latter pathway is neglected in exposure estimates. This study shows that both pathways should be considered in efforts to develop safer and more sustainable products and to achieve cleaner air.

Reverse osmosis membranes are the primary technology used for desalination and wastewater recycling, but they are prone to biofouling and subsequent performance deterioration due to poor tolerance to disinfecting agents such as chlorine. Here a chlorine-resistant polyester reverse osmosis membrane is developed to prevent biofouling and increase the sustainability of desalination and wastewater reuse.

Models used to calculate the costs of carbon emissions do not include ecological damages. This study expands an integrated assessment model to include natural capital as a form of wealth, and shows that accounting for the use and non-use value of nature has large implications for climate policy.

Worldwide, longer fire seasons are causing unsustainable impacts. This study finds that the 2019–20 Australia fire season caused health-related costs of AU$1.95 billion, nine times the median for the previous 19 years.

Marine construction is sprawling globally. As of 2018, this study finds that the structures occupied 32,000 km² but affected 1 to 3 million km², a shadow expected to expand 50–70% by 2028.

Drylands are under pressure from climate change and population growth. This study finds the sensitivity of dryland vegetation to rainfall changing, with opposite effects in poorer and richer nations.

Water use may be a topic of increased research, but water theft remains understudied. This paper utilizes insights from three international case studies to inform on the systemic failures that sustain water theft.

Neonicotinoid insecticides have the potential to harm non-target organisms. This study finds that, between 2008 and 2014, increased neonicotinoid use in the United States reduced bird diversity, especially grassland and insectivorous birds.

Perfluorochemicals render fabrics water and oil repellent; however, their use poses environmental and health risks. Here, the authors show the rational design of textile finishes with excellent oil repellency without adopting any perfluorinated substances.

Light-responsive smart materials hold promise for a solution to water desalination. Here the authors report an adsorbent based on a metal–organic framework that quickly adsorbs multiple ions from water in the dark, followed by release of these salts on exposure to sunlight.

The most-efficient solar cells use Pb-based halide perovskites; however, their toxicity poses environmental and health risks. Here, the authors report an adsorbent that allows for sustainable Pb management in these devices.

Although deserts have been the focus of large-scale solar power development, this study finds that ecosystem services are degraded during such development, with impacts not only on plants and animals, but indigenous peoples as well.

The presence of microplastics in wastewaters used for irrigation highlights the urgency of analysing the possible uptake of microplastics by crop plants. This study shows that submicrometre and micrometre plastic particles from treated wastewater enter the steles of crop plants via a crack entry at sites of lateral root emergence.

Solar-driven interfacial evaporation can be a sustainable process to obtain clean water but device efficiency and simplicity need improving. This study presents a super-wicking and super-light-absorbing aluminium surface with increased efficiency, a simple structure and strong performance.

Urban air quality remained remarkably worse than WHO recommended levels in cities during the first COVID-19 lockdown in China, despite substantial pollution reductions and the high costs of the measure.

Runoff from mountain water sources is critical to some lowland populations. In this Article, these populations are projected to increase from 0.2 billion people in the 1960s to 1.5 billion by mid-century.