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This article seeks to address aviation as an emerging biofuel consumer and to discuss sustainability issues and consequences for feedstock production concepts. Biojet fuels have been identified as a promising, readily deployable alternative to fossil‐based aviation fuels. At the same time they are highly criticised as their production may have negative social and environmental impacts. Therefore, the paper aims to identify major sustainability issues and assessment challenges and relate these to the production of biojet fuel feedstock.

Two plant oil production concepts are presented that address the sustainability issues discussed. Both concepts are being investigated within the research project “Platform for Sustainable Aviation Fuels”. A literature‐based overview of sustainability issues and assessment challenges is provided. Additionally, conceptual insights into new plant oil production concepts are presented.

The use of biojet fuels is often hailed as a strategy for the aviation industry to become more sustainable. However, biofuels are not necessarily sustainable and their potential to reduce GHG emissions is highly debated. Several unresolved sustainability issues are identified highlighting the need for improved assessment methods. Moreover, the two concepts presented have the potential to provide sustainably grown feedstock, but further empirical research is needed.

This article addresses researchers and practitioners by providing an overview of sustainability issues and assessment challenges related to biojet fuels. Consequences are identified for two plant oil feedstock concepts: catch cropping in temperate regions and silvopastoral systems in tropical and subtropical regions.

The purpose of this paper is to explore the scope of applications and benefits of sustainability accounting for the production and industrial use of biomass as an energy source and substitute for fossil‐fuel use. As environmental degradation and unacceptable social impacts not only increase from the production and use of fossil‐fuel based energy, but also from alternative energy sources, the monitoring, controlling and measuring of the (un‐)sustainability of alternative energy production and use emerges as an area in critical need of research.

The paper presents a review of the issues surrounding the accounting for the (un‐)sustainability of industrial biomass production and use, considering what biomass is, the current and forecast importance of industrial biomass, different approaches to its production, and the subsequent measurement and monitoring of its potential (un‐)sustainability.

The paper finds that it is insufficient to conclude in general terms, as is often done or assumed in policy documents and statements, that industrial production and use of biomass is sustainable (or unsustainable) and that accounting for biomass must recognise the broader ecological and social system of which the production and use form a part. A further finding of the paper is that from agricultural or industrial production of biomass through to consumption and industrial use of biomass, the accounting issues surrounding biomass production and use are essential to determining its (un‐)sustainability.

The paper provides an overview of the importance of and problems with the production of biomass for industrial use, and related sustainability issues. It discusses possibilities for and limitations of accounting to address these sustainability issues as well as the need for and the challenges in measuring the (un‐)sustainability of biomass production for industrial use and the accounting for sustainability improvements.