Socioeconomic scenarios articles from across Nature Portfolio

Global projections of the economic impacts of climate change have usually focused on rising average temperatures. Now, two studies depict more complex and gloomier scenarios by incorporating variability in temperature and precipitation.

Humans rely heavily on non-renewable groundwater, especially to support agricultural production. Like other depletable resources, groundwater extraction is expected to peak and subsequently decline during the twenty-first century, highlighting imminent transformations in the availability and use of water globally.

Global projections of the economic impacts of climate change have usually focused on rising average temperatures. Now, two studies depict more complex and gloomier scenarios by incorporating variability in temperature and precipitation.

Funding large-scale negative emissions through a carbon market designed for traditional emission reduction strategies risks exacerbating long-term economic inequality. We suggest exploring alternative financing mechanisms that address this concern and that still ensure decarbonization at reasonable costs.

The diverse structures of energy system models result in disparities in computed energy and climate outcomes. Through a systematic quantification of five diagnostic indicators, new research offers a comprehensive ‘energy model fingerprint’ that will enable better contextualization and comparison of models in climate mitigation studies.

Emission savings from three circular economy strategies aiming to close, slow and narrow China’s bulk material loops have been analysed using an integrated model. This analysis highlights that material recycling delivers substantial emission cuts, but demand reduction is equally crucial for decarbonizing bulk materials.

Dr Alexandre Caldas, a Director at the United Nations (UN) as Chief of Country Outreach, Technology and Innovation in the Science Division at the United Nations Environment Programme (UNEP) and Chair of the United Nations Geospatial Network across 40 agencies of the UN, talks to Nature Computational Science about the importance of data availability, the Sustainable Development Goals, and evolving policy.