One potential renewable energy resource is green gas production through anaerobic digestion (AD). However, only part of the biogas produced (up to 50-60%) contains the combustible methane; the remainder are incombustible gasses with the biggest being carbon dioxide. These gasses are often not used and …

Participating in physical activity (PA) is beneficial for adolescents' physical and mental development. Therefore, many studies have been conducted to design and evaluate interactive interventions to facilitate adolescents' PA. Despite the knowledge produced by this large number of studies, the field …

Waste Treatment Technologies has made a considerable growth the past couple of years. The organization is designing, constructing, building and maintaining waste treatment facilities all over the world. Several aspects within the organization have grown together with the recent developments. However, …

Closed loop or ‘circular’ production systems known as Circular Economy and Cradle to Cradle represent a unique opportunity to radically revise the currently wasteful system of production. One of the challenges of such systems is that circular products need to be both produced locally with minimum environmental …

Early links in the food web are crucial to sustain higher levels in the food web. Molecules of high importance, for example unsaturated fatty acids, play a key role in aquatic ecosystems. Unsaturated fatty acids are produced by primary producers for instance phytoplankton. Almost all organisms need to …

Climatecafe Riga produced innovating green infrastructure ideas for climate adaptation in Riga. Space designers, landscape architects, environmental and water engineers, utility specialists and municipal employees attended the international seminar ‘Water and City’ as introduction for Climatecafe Riga …

What kind of serious games dealing with climate change are out there? Do these types of games share similar quality levels across borders? The purpose of this article is to carry out a comparative quality assessment of games produced in two different countries: United States and Spain. For this purpose, …

from the article: "While previous studies have stressed the importance of feedback delivered by experts, it is unclear whether students' oral presentation competence can be fostered through innovative technology for delivering feedback. This experimental study examined the effectiveness of a virtual …

Biogas is produced from biomass by means of digestion. Treated to so-called ‘green gas’, it can replace natural gas. Alternatively, biogas can be used to produce electrical power and heat in a combined heat power (CHP) installation. In 2014 global biogas production was only 1% of natural gas production. …