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Water consumption does not put a constant stress on available supplies, but is instead a function of flexibility in demands for food, water and energy. This analysis looks at 36 years of water consumption around the globe to identify basins under the most stress, and how they can lower their intensive uses.
Rural communities manage much of the world’s forests, but the effects on both landscapes and people are still unclear. This study estimates the impacts of such community-based forest management in Nepal from 2000–2012 and finds significant net reductions in both deforestation and poverty.
Millennium and sustainability goals may be well known, but the history of how those goals are formed remains hidden. This Analysis examines the political and academic factors that led to MDG 7C and how China and India have tried to achieve it.
Investing in infrastructure systems will lock-in patterns of development for future generations. This study finds that infrastructure either directly or indirectly influences the attainment of all of the Sustainable Development Goals, including 72% of the targets.
Large-scale offshore wind turbines require rare-earth metals with a limited natural supply. This study addresses the neodymium material requirements needed to meet substantial electric generating capacity in the United States and estimates how much could be reused from decommissioned turbines.
Pollinators are integral to ecosystem functions and human wellbeing, yet conservation approaches often ignore indigenous and biocultural perspectives and practices. This Analysis uses the IPBES framework to categorize biocultural practices and identify policies to support their roles in pollinator conservation.
Honey can be used as a biomonitor to determine the source and fate of heavy metal pollutants in cities. This study analyses lead isotopes and trace element concentrations in honey from six geographical sectors in Vancouver, Canada. It finds that hives in the downtown sector of the city, near the Port of Vancouver, produced honey with elevated trace element concentrations and less radiogenic Pb isotopic compositions.
An estimate of the network of interactions relating to achieving the SDGs finds that tackling poverty and inequality will have positive effects on achieving all other goals.
Water-use efficiency in the production of food must not only take into account quantities and yields, but also the nutrients and dietary impacts. Animal and plant foods show little difference in this demand efficiency, and best serve as complimentary rather than substitutable foods.
Water utilities worldwide are diversifying their portfolios of water supplies to smooth growing variation in water availability. This simulation finds that the option of engaging in an open water-trading scheme in the San Francisco Bay Area could promote regional resiliency and lowers costs.
Various battery recycling processes exist, but the related environmental and economic implications can vary by specific battery chemistry. This study examines the greenhouse gas emissions, energy inputs and costs associated with producing and recycling lithium-ion cells with different cathode chemistries.
An integrated assessment of global crop, livestock and aquaculture production, and fisheries landings over 53 years shows how shocks created in one food sector can spill over into multiple sectors, and which regions are shock hotspots.
The rooftop photovoltaics (PV) industry in the United States has grown significantly, but little is known about any racial and ethnic disparity in PV adoption. This study compares the adoption of rooftop PV across census areas grouped by racial and ethnic majority. It finds that in census areas that have predominantly black or Hispanic people, average rooftop PV installation is significantly lower.
Reducing direct economic losses from disasters is part of mitigating disaster impacts. This study presents an update to the leading dataset on normalized US hurricane losses in the continental United States from 1900 to 2017.
'No net loss’ biodiversity policies seek to offset biodiversity losses caused by economic development. This study assesses the global extent of such biodiversity offsets, finding that they occupy an area much larger than recognized and that most are small and implemented due to regulatory requirements.
Aviation biofuels for climate change mitigation may be detrimental to other sustainability goals, according to a life-cycle assessment. Negative effects can be mitigated with appropriate technology and supply-chain management.
Cryptocurrency mining requires extensive energy consumption for computers to verify the blockchain and generate new currency. This analysis compares several cryptocurrencies and metals in terms of the amount of energy needed to create one US dollar of value, as well as the carbon emissions that may be directly attributable to cryptocurrency mining.
Provision of electricity in sub-Saharan Africa is often affected by outages leading to increased use of backup diesel generators. In this study, the authors estimate the air emissions, consumer costs and fossil energy consumption resulting from the use of such generators.
The net environmental costs of rare earths production in China, the largest producer, are estimated to be almost US$15 billion. Scenarios show that the largest reduction in environmental impact can be achieved by tackling illegal mining.
Measures to adapt coastal areas to tsunamis risk creating greater vulnerabilities owing to a false sense of security. Hard-adaptive projects like seawalls must be considered within an assessment of human behaviour and feedback loops.