Sho Hata

National Institute for Environmental Studies · Sosial System Division

Achieving a zero-emission future depends greatly on how steel production is decarbonized within a limited time frame. Here we show that the production of zero-emission steel is possible but that the quantity and quality of steel may be limited by scrap downcycling. Using Japan as a case study, our analysis shows that most steel scrap is currently d...

Decarbonization strategies for the cement and concrete sector have relied heavily on supply-side technologies, including carbon capture and storage (CCS), masking opportunities for demand-side intervention. Here we show that cross-cutting strategies involving both the supply and demand sides can achieve net-zero emissions by 2050 across the entire...

Production and services are supported by fixed-capital which require large amounts of material investments. Given that material use triggers substantial carbon emissions, management of the material use and carbon emissions via fixed-capital formation is vital for climate targets. Here, we calculate capital-embodied material footprints (MFs) and the...

Moving towards a 1.5 °C world could fundamentally alter the future copper cycle through two key drivers: the implementation of decarbonization technologies and the imposition of an emissions budget on production activities. This study explores the impact of these drivers on the global copper cycle using a dynamic material flow analysis, coupled wit...

The increasing frequency of large-scale natural disasters generates massive energy and resource demand for recovery. We developed an inoperability multiregional input–output model as a quadratic programming model with production and greenhouse gas (GHG) restrictions to develop a low-carbon recovery plan for natural disasters. In a case study of a h...