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Woody biomass energy makes up a large share of renewable energy consumption in the EU, and the largest share in countries like Denmark. However, little is known about how the public perceive it. This paper presents the results of a questionnaire-based survey of the public in Denmark focusing on attitudes toward woody biomass for energy. The main findings are that, while more people favor than oppose it, a large proportion are undecided about the use of woody biomass. The survey also revealed a lack of knowledge about this energy source. A Best-Worst Scaling methodology revealed that Danes prioritize environmental sustainability concerns – namely biodiversity loss, the hindering of the development of other renewable energy sources and the climate change mitigation potential of woody biomass – over societal and/or economic ones when it comes to the promotion of woody biomass. Finally, it was found that concern about climate change, belief in the mitigation potential of woody biomass, and being younger explained the formation of positive attitudes toward woody biomass. Policy makers aiming to take public concerns into account in discussions about Denmark's energy future should focus more on minimizing the negative environmental impacts associated with woody biomass rather than on its economic benefits. [Display omitted] [ABSTRACT FROM AUTHOR]

Ambitious climate change mitigation scenarios require large-scale deployment of bioenergy and solar photovoltaics. Utilizing recently abandoned cropland for renewable energy production is a promising option for energy supply while reducing competition for land and food security. However, the magnitude of abandoned cropland and its potential for renewable energy production is still unclear. Here, we mapped recently abandoned croplands at a global level and assessed the site-specific primary energy potentials for bioenergy and solar photovoltaics considering local climatic conditions, energy yields, and socio-economic feasibility constraints to identify optimal land use for renewable energy production. Of the 83 Mha of the identified abandoned cropland between 1992 and 2015, 68% of the area presented higher development potentials for the establishment of solar photovoltaic compared to dedicated bioenergy crops. In total, 125 EJ/year of primary energy can be produced with this optimal land management, of which 114 EJ/year is from solar photovoltaic and 11 EJ/year is from bioenergy. This figure corresponds to 33–50% of the projected median renewable energy demand in 2050 across the 1.5 °C stabilization scenarios. Mapping the suitability of renewable energy sources across different local, environmental, and socio-economic constraints will help identify the best implementation options for future energy systems transformation. • Recently abandoned cropland is a promising option for renewable energy production. • More than 80 million hectares of abandoned cropland is identified globally. • An optimal combination can produce 125 EJ per year on the abandoned cropland areas. [ABSTRACT FROM AUTHOR]

Abstract Bioeconomy is an important element of European Union (EU) political agenda. Promotion of bioenergy is one of the main aspects of bioeconomy strategy. The aim of this paper is to show how the development of bioenergy can contribute to climate change (and the associated policy). Specifically, we look into the possible reduction of GHG emissions within the framework of Environmental Kuznets Curve (EKC). The panel models are estimated for the EU countries by modifying the classical EKC by including in the EKC model biomass and other renewables. The results showed that the coefficient associated with GDP decreases when renewables are included in the model. More specifically, the more types of renewables are included, the lower values of the coefficient associated with the linear term are observed. Furthermore, the effect of biomass on the reduction of GHG emission is higher if opposed to that caused by the other renewable resources. If we hold other factors fixed, increase in biomass use of 1% would reduce GHG emission by 0.089%, whereas the effect of the other renewable energy sources is 0.025%. Therefore, the development of bioeconomy and the promotion of bioenergy are one of the main tools for climate change mitigation. [ABSTRACT FROM AUTHOR]