Alexander Popp

1 month ago | nature.com | Hao Cai |Jiaqi Xuan |Xiaoxi Wang |Changzheng Yuan |Benjamin Leon Bodirsky |Miodrag Stevanović | +2 more

AbstractThe transition to more sustainable diets is critical to achieve the Sustainable Development Goals and meet the Paris Agreement commitments. In China, this transition is particularly urgent due to the double burden of malnutrition and environmental degradation. In this study, we explored the potential of alternative diets in China to enhance public health, ensure food affordability and reduce adverse environmental impacts.

Jan 21, 2025 | nature.com | Xiaoxi Wang |Hao Cai |Jiaqi Xuan |Bin Lin |Benjamin Leon Bodirsky |Miodrag Stevanović | +14 more

AbstractFood systems are essential for the achievement of the United Nations Sustainable Development Goals in China. Here, using an integrated assessment modelling framework that considers country-specific pathways and covers 18 indicators, we find that most social and environmental targets for the Chinese food system under current trends are not aligned with the United Nations Agenda 2030.

Jan 3, 2025 | nature.com | David Chen |Benjamin Leon Bodirsky |Xiaoxi Wang |Jiaqi Xuan |Jan Dietrich |Alexander Popp | +1 more

Agricultural production costs represent less than half of total food prices for higher-income countries and will likely further decrease globally. Added-value components such as transport, processing, marketing and catering show increasing importance in food value chains, especially as countries undergo a nutrition transition towards more complex and industrial food systems. Here, using a combined statistical and process-based modelling framework, we derive and project the value-added component of food prices for 136 countries and 11 different food groups, for food-at-home and food-away-from-home. We identify the declining but differentiated producer share in consumer food prices across food products, and provide scenarios of future consumer prices under a business-as-usual as well as climate mitigation scenarios. Food price increases from policies targeting agricultural producers, such as greenhouse gas taxes, are not as stark when transmitted to consumers owing to higher value added in higher-income countries, while a pronounced effect remains in lower-income countries, even in coming decades. 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.

Nov 8, 2024 | mdpi.com | Alexander Popp |Benedikt Schmuelling |Sahar Qaadan

1. IntroductionElectric vehicles and portable electronics have rapidly developed a demand for efficient and reliable lithium-ion batteries (LIBs) in the market. Longevity, durability, and performance are greatly important for customer satisfaction in LIBs and technological development. Accurate estimation of a battery’s SOH is crucial for optimizing the battery usage and preventing sudden failures, which have great economic consequences and safety risks [1,2].

Sep 29, 2024 | nature.com | Jessica Strefler |Leon Merfort |Nico Bauer |Miodrag Stevanović |Florian Humpenöder |Gunnar Luderer | +3 more

AbstractIn this study, we analyze the effects of technology availability, political coordination, and behavioral change on transformation pathways toward net-zero greenhouse gas emissions in the European Union by 2050. We implemented an iterative stakeholder dialogue to co-design the scenarios that were calculated using a global multi-regional energy-economy-land-climate model.