Search

Green subsidies (carrots) are now becoming a more politically acceptable climate policy option compared with corrective regulations (sticks). However, researcher show that carrots without quick and appropriate sticks will not be sufficient to reach the deep decarbonization goal in the long run.

This study applies a global food and land system modelling framework to quantify the impact of 23 food system measures on 15 outcome indicators related to public health, the environment, social inclusion and the economy—from today until 2050.

The majority of incident HIV infections in Eastern and Southern Africa occur in the general population. Here, the authors harmonise data from eight open population-based cohort studies from six countries and describe individual and community-level risk factors for HIV acquisition.

The authors conduct a national inventory on individual tree carbon stocks in Rwanda using aerial imagery and deep learning. Most mapped trees are located in farmlands; new methods allow partitioning to any landscape categories, effective planning and optimization of carbon sequestration and the economic benefits of trees.

To forge a strong climate accord in Paris, nations must agree on a common goal in everyone's self-interest, say David J. C. MacKay and colleagues.

A wide range of policies and actions can be used to address energy insecurity, and there are many actors and institutions to carry them out. This Perspective provides an overview of the many levers, or opportunities, that electricity sector actors have to reduce energy insecurity and affordability in the United States.

The future of food prices is uncertain yet key for food security and climate mitigation policies. This study estimates future food prices for 136 countries and 11 distinct food groups, showing that future food prices will become less sensitive to agricultural market dynamics and land-based mitigation policies, given the global transition towards more complex and industrial food systems.

Dynamic pricing schemes are increasingly employed in on-demand mobility. Here the authors show that ride-hailing services across the globe exhibit anomalous price surges induced by collective action of drivers, uncovered from price time-series at 137 locations, and explain under which conditions they emerge.

The Russia–Ukraine conflict affected the price of staple crops and spurred interest in tropical wheat production. Regional consumption patterns and trade are better placed to guide effective and sustainable food security policy strategies.

Demand for agricultural water resources under climate change may come into conflict with achieving positive environmental outcomes. In Australia’s Macquarie basin, environmentally minded management can ensure agricultural needs are met without sacrificing environmental outcomes.

Many people globally still use solid fuels for cooking and heating, leading to programmes designed to subsidize cleaner alternatives. This study analyses possible effects of climate mitigation policies on fuel costs and hence the effectiveness of such schemes.

TIRTL-seq is a high-throughput method for paired T cell receptor sequencing at the cohort scale.

Impacts from a climate event can cascade through natural, anthropogenic and socio-economic systems. Here the authors assess cascading climate impacts on the EU and identify intervention points for adaptation related to water, livelihoods, agriculture, infrastructure and economy, and violent conflict.

This analysis of net-zero strategies designed in an iterative stakeholder dialogue finds that without behavioral change and with restriction of technologies, the target of greenhouse gas neutrality in the European Union cannot be reached.

The Marshall Institute advocates that the United States should deploy space-based missile interceptors in the near future. At best such weapons would not be cost effective, at worst they would be useless.

Natural disasters induce power outages with unequal impacts on poverty and non-poverty counties in China. Climate change will further exacerbate this disparity.

To achieve timely restoration of coronary flow in patients with acute myocardial infarction, the decision to call in the cardiac catheterization team has moved ever earlier, and is often made before cardiologist evaluation. Door-to-balloon times have been reduced, but the price of this success is an increase in 'false alarms'.

Intrinsic capacity (IC) was introduced by the World Health Organization to promote healthy aging. Here, using data from the Longitudinal Ageing Study in India, the authors develop an IC measure for older Indian adults. Their analysis shows that higher IC scores are associated with better health and functioning and reveals regional and sociodemographic variations.

The recent drop in oil prices is having a profound impact on global energy markets, raising questions about how these markets might evolve over the long term. This study uses scenarios to assess the energy and emissions impacts of diverging oil price futures and which uncertainties they depend upon.

A global network of researchers was formed to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity; this paper reports 13 genome-wide significant loci and potentially actionable mechanisms in response to infection.

Former chief science advisor to the UK government David King once said that last month's talks in Copenhagen would be the “last chance saloon” for tackling climate change. But there is hope beyond Copenhagen, says King. Olive Heffernan reports.

Large-scale analyses of bird species traits reveal that land-use change reduces resilience of key ecological functions more than previously thought.

Despite exporting nutrient-rich seafood, developing countries import seafood with higher nutrient density per dollar than developed nations. These nutritional bargains are linked to differences in processing and product forms of traded seafood.

Mutations in GJB2 cause DFNB1, the most common hereditary deafness. ATAC-seq identification of gene regulatory elements enables targeted GJB2 delivery to cochlear cells, preventing hearing loss in mouse models.

Peer-to-peer energy trading can foster participation in the energy transition, but little is understood about prosumer preferences and their effect on the grid. Pena-Bello et al. use an online experiment among German homeowners to study decision-making strategies and simulate their impact on the operation of an energy community.

An analysis of 24,202 critical cases of COVID-19 identifies potentially druggable targets in inflammatory signalling (JAK1), monocyte–macrophage activation and endothelial permeability (PDE4A), immunometabolism (SLC2A5 and AK5), and host factors required for viral entry and replication (TMPRSS2 and RAB2A).

Natural gas and carbon removal can play roles in reaching net-zero emissions in the U.S. electric sector and can lower decarbonization costs, though wind and solar have higher generation shares for most regions and scenarios.

By carefully dispersing small amounts of Ir into the RuO₂ lattice, a Ru₆IrOₓ catalyst reduces Ir usage by 80% while still running stably for over 1,500 h at 2 A cm⁻² in both laboratory- and industrial-scale proton-exchange membrane water electrolysers.

Crop diversification is a promising strategy to enhance global food security, yet potential trade-offs between yields and nutritional outcomes remain unclear. This global synthesis reveals that transitioning from monoculture to crop rotation consistently boosts total yield, nutritional quality, and revenue by 14–27%, with win-win outcomes significantly outweighing trade-offs across major agricultural regions.

This Review will help physicians to make the best case-by-case decisions when treating the three most common types of primary glomerulonephritis that progress to end-stage renal disease—membranous nephropathy, focal segmental glomerulosclerosis and IgA nephropathy. The authors systematically assess the benefits of reducing proteinuria in each of these diseases, and then place these benefits in the context of the early and late adverse effects of currently available therapies.

Bioenergy has been widely viewed as an alternative for fossil fuels and an option for carbon dioxide removal, but there are doubts given the induced land-use changes. This study shows the importance of uniform regulation and comprehensive coverage of carbon-rich areas in reducing total emissions.

An integrated assessment model analysis shows that a moderately differentiated carbon price could achieve as much climate mitigation as a uniform carbon tax, avoiding concerns regarding equity between participating countries or sovereignty.

Biofuel prices depend on related commodities—such as corn, sugar cane and palm oil—but their connection to other non-feedstock commodities is less well explored. Filip et al. analyse a data set of 33 commodities and assets and examine their relationships to biofuels in Brazil, the US and Europe.

Upcycling urine in wastewater for nitrogen and phosphorus production has gained attention, but their low market values hamper the application. Here, the authors develop a yeast platform that mimics osteoblast mechanisms to produce the high-value hydroxyapatite directly from urine.

Absorption in one-port passive systems is known to be bound by causality constraints. Here, authors study reflection and transmission of a two-port system to introduce a generalized causality constraint based on duality symmetry. Experimentally, the broadened bandwidth of their meta-absorbers shows the untapped absorption potential of broadband acoustic metamaterials.

Ecosystem accounts quantify trade-offs between the economy and the environment. Here, the authors apply this approach to a regional case study of native forest use to show how it can be used to inform policy about complex land management decisions.

Rider, Grantham, Smith, Watson et al. integrate multiomic data from patients with psoriasis using dimensionality reduction and machine learning techniques. This approach identifies biological relationships between genetic background, clinical features and disease severity, providing insight into disease variability across individuals.