We compile a database of energy uses, energy sources, and carbon dioxide emissions for the USA for the period 1850-2002. We use a model to extrapolate the missing observations on energy use by sector. Overall emission intensity rose between 1850 and 1917, and fell between 1917 and 2002. The...

As part of the decarbonisation of the global economy, low-carbon hydrogen is expected to play acentral role in future energy systems. This article presents a comprehensive approach for estimating thedevelopment of global production and supply costs of low-carbon hydrogen from renewable energy...