• Energy Research
• Restricted close
• biological sciences close
• 12. Responsible consumption close
• 9. Industry and infrastructure close

‘DRIVE4EU - Dandelion Rubber and Inulin Valorization and Exploitation for Europe’, a demonstration project, aims at the development of a value chain for natural rubber and inulin from Rubber dandelions. The objective of the project is to set up a new European chain for the production and processing of natural rubber. This will enable the EU to become less dependent on the import of natural rubber and at the same time to respond to the threat of a global rubber shortage. The viability of using Rubber dandelions for rubber and inulin production depends on the sustainability of this new value chain. The results of a general economic assessment shows that the total costs over the whole value chain are dominated by the costs for cultivation and harvesting and the cost for biorefining. The combination of natural rubber and inulin makes Rubber dandelion very interesting as a production platform. Proceedings of the 25th European Biomass Conference and Exhibition, 12-15 June 2017, Stockholm, Sweden, pp. 1292-1293

This article outlines issues to be tackled when considering increases in biofuel usage in the European Union (EU) and examines a potential scheme to increase the use of biofuels in the road transport sector; the development of biofuels corridors. An EU biofuels corridor is defined as a long-distance and cross-border route on the Trans-European Transport (TEN-T) Network roads on which blends with a high biofuel content (referred to as high blends) are offered at regular intervals along the entire route. The article first defines the current framework of EU biofuels development. A case study on the feasibility of one possible EU biofuels corridor, from Rotterdam, Netherlands, to Constanta, Romania, is analyzed along four potential biofuels corridor designs (under different future scenarios). The case study includes interviews with key stakeholders, transport flows analysis, refueling infrastructure, and biofuels policy in the relevant member states. The results are extrapolated to the complete EU level in order to assess the potential effect of the biofuels corridor approach as a measure of stimulating the use of biofuels. It is concluded that EU biofuels corridors can increase the use of biofuels. However, if applied as a stand-alone measure a maximum contribution is limited. The effectiveness of biofuels corridors is not larger mainly due to the fact that the transport flows on the TEN-T Network roads are not representative of actual fuel sales at stations on this network (i.e., motorway stations). In addition, various recommendations are made for further research. © 2012 American Society of Civil Engineers.

Carotenoids and phycobiliproteins have a high economic value, due to their wide range of biological and industrial applications. The implementation of strategies to increase their production, such as the application of two-phase light cultivation systems, can stimulate pigments production, increasing economic turnover. In this sense, Cyanobium sp. was grown in seven different two-phase white/red cultivation arrangements, varying the time of each light from 0 to 21 days. Biomass, photosynthetic activity, pigments profile and antioxidant capacity were measured along time. Red light increased photosynthetic activity and pigments content (ca. 1.8-fold), and the use of a two-phase cultivation system generally raised bioactivity and production of phytochemicals. Among the studied, the optimal cultivation condition was found with 10 days of white followed by 4 days of red light. The optimized growth led to a productivity of 137.4 ± 0.8 mg L-1 d-1 of biomass, 17.0 ± 0.2 mg L-1 d-1 of total phycobiliproteins and 4.5 ± 0.2 mg L-1 d-1 of carotenoids.

Last week, the United States designated nearly 140,000 square miles of the Pacific Ocean northwest of Hawaii as the largest protected marine reserve in the world. This is good news, considering that earlier this year, 4000 delegates left the international Conference of the Parties to the Convention on Biological Diversity (held in March 2006 in Brazil) with mixed feelings. Portrayal of the conference as successful by the Executive Secretary was in stark contrast to the frustration expressed by environmentalist groups about the failure to progress toward creating large marine protected areas. Paradoxically, the fact that the oceans are the patrimony of all nations creates a legislation gap that is the major obstacle to increasing the percent of protected ocean to the 10% targeted by the convention. This obstacle is augmented by a lack of awareness by legislators and the general public about the role, status, and prospects of biological diversity in oceans relative to the land. Until a better understanding of the diversity of and threats to life in the oceans is achieved, there will be no progress in protecting marine biodiversity. The vast richness of marine biodiversity remains to be discovered, particularly in remote habitats such as the deep ocean. There is a widespread misconception that extinction in the ocean is unlikely because of its huge biogeographical ranges and high connectivity of habitat. But recent surveys and molecular analyses of ocean samples have revealed marine invertebrates with biogeographical ranges as small as 4 km. Specialized communities in deep-sea habitats, such as hydrothermal vents and cold seeps, are isolated across thousands of kilometers. Marine diversity is much more extensive and vulnerable than previously thought. Moreover, much of this diversity is microbial and therefore generally unappealing to society. Indeed, more charismatic animals and plants receive most of the conservationists' attention. Scientific research must unveil the importance of ocean life diversity, test for declines in important taxa and ecosystems, elucidate the causes of these declines, and provide remedial options to change these perception biases. ![Figure][1] Although research on biodiversity has increased, these efforts are dominated by studies on land. Between 1987 and 2004, only 9.8% of published research dealt with marine biodiversity. This severe imbalance percolates through international programs. For instance, only about 10% of the First Open Science Conference of the Diversitas Programme (November 2005 in Mexico) that dealt with biodiversity science addressed marine biodiversity. This disproportionally small research effort on marine biodiversity is in sharp contrast to the large genomic diversity in the oceans as compared to that on land. Most branches of the evolutionary tree of life thrive in the oceans, whereas most terrestrial species are contained within only two branches, a result of the extended history of life in the oceans (3500 million years). The genomic richness of the ocean is an untapped resource for biotechnology, pharmacy, and food. The number of marine species brought into aquaculture exceeds, after only 30 years of development, the number of animal species domesticated over 10,000 years of husbandry on land. Realizing these opportunities requires progress to improve our present knowledge about sustainably managing marine resources. The oceans have lost much of their fish biomass and megafauna to hunting, and key coastal habitats are lost globally at rates 2 to 10 times faster than those in tropical forests [also see the Report by Lotze et al. in this issue (p. [1806][2])]. Anthropogenic inputs to the ocean are causing hypoxia and widespread deterioration of water quality, and anthropogenic CO2 emissions are causing ocean acidification, which is emerging as a global threat to calcifying marine organisms. The concept of protected areas that emerged from studies of life on land cannot be readily extrapolated to the ocean. Until last week, the total protected marine area was 10 times smaller than that on land, and most marine protected areas are too small to be effective. Mounting evidence indicates that marine food webs are connected across oceanic scales, but the forces driving these connections are poorly understood. We must improve our understanding of how the global ocean ecosystem works in order to design networks of protected areas that effectively preserve biodiversity. Indeed, as Mora et al. point out in this issue (p. [1750][3]), the present design of some marine protected areas may not be optimal. Further promoting marine biodiversity research requires a larger scientific community and more resources than currently exist. This can be achieved through increased international cooperative efforts and networking. We must do this before we face a future depleted of marine resources. [1]: pending:yes [2]: /lookup/doi/10.1126/science.1128035 [3]: /lookup/doi/10.1126/science.1125295

Chain elongation is an anaerobic fermentation that produces medium chain fatty acids (MCFAs) from volatile fatty acids and ethanol. These MCFAs can be used as biochemical building blocks for fuel production and other chemical processes. Producing MCFAs from the organic fraction of municipal solid waste (OFMSW) is attractive because it combines waste treatment with biochemical production. We investigated whether higher MCFA production rates can be achieved from OFMSW by applying a two-stage conversion, consisting of the OFMSW acidification step followed by chain elongation, compared to a single-stage system. We obtained higher MCFA production rates with a two-stage system than with a single-stage system. The obtained caproate concentrations were above the solubility of caproic acid in water. Furthermore, this work discussed competitive processes for MCFA production and shows how these processes can be controlled in a two-stage system. Finally an outlook was given on research required to prevent too much production of the intermediate co-product butyrate instead of MCFAs, which occurred several times during the experiment.

This paper analyzes the influence of three private incentive mechanisms over decision making related to improved sustainability of fishing practices in Filipino tuna fisheries. The three mechanisms compared are the World Wildlife Fund for Nature's fishery improvement project model, Marine Stewardship Council certification, and the International Seafood Sustainability Foundation Pro-Active Vessel Register. The main question addressed in this paper is how and to what extent the private incentive mechanisms support the development of fisher capabilities to respond to the requirements set out by these mechanisms. Applying a global value chain approach to analyze results collected from key actors involved in Philippine tuna fishers contributing to both domestic and regional economic development in the Western Pacific, we explore the structure and function of these private incentive mechanisms in achieving both environmental and economic development outcomes. Our results show that these private incentive mechanisms deliver different direct and indirect incentives for changing to more sustainable fishing practices, and that the success of these mechanisms is dependent on the extent to which the mechanisms support the development of target fisher capabilities to comply with their sustainability requirements. We conclude that the future success of these incentive mechanisms depends for a large part on stricter sustainability requirements, but also on the capacity of the mechanisms to incentivize the inclusion of more developing country fishers. These findings contribute to a wider understanding of how the capabilities of developing country producers are influenced by their relationship with chain and non-chain actors, and with the wide institutional arrangements that the producers operate in.

Geopolitical tensions in some oil producing regions and the uncertainties surrounding the future availability of fossil fuels, as well as the urgent necessity to mitigate negative impacts on climate through reduced CO2 emissions, have created a strong interest for biofuels. Among potential crops for the production of biofuels, sorghum is an interesting C4 plant, able to combine production of food and fuel as well as a variety of other products. However, new ideotypes of sorghum need to be defined in order to optimise efficiency with respect to the following three potential use options of sorghum: (1) production of ethanol through second generation processes, (2) production of first generation ethanol combined with the use of bagasse for co-generation, and (3) production of first generation ethanol combined with the production of grain and the use of bagasse as fodder. This paper presents results elaborated in the framework of the project SWEETFUEL, supported by the European Commission, on the successful combination of traits of new sorghum ideotypes suitable for the three abovementioned use options. Proceedings of the 19th European Biomass Conference and Exhibition, 6-10 June 2011, Berlin, Germany, pp. 782-786

The search for sustainable alternative food sources has led to the expansion of aquaculture, with the proliferation of marine farms in more and more places, some of them very touristic. The installation of these farms in the waters of consolidated Sun and Beach tourist destinations represents a planning challenge, which requires consideration of the potential environmental and economic impacts of those activities on tourism attractions. This article critically analyzes the implementation of marine farms in the Costa Blanca (Alicante), one of the most consolidated Sun and Beach tourist destinations in the Mediterranean. The case study shows that the environmental impact studies and other documentation accompanying these projects do not include tourism aspects, which represents a deficiency that jeopardizes the economic and social sustainability of the projects. This work was supported by Excelencia para el profesorado universitario de la Universidad de Alcalá [grant number EPU-INV-UAH/2021/003].