International Cognitive Visualization, California State University Chico, USA

Labour mobility is important as it helps to balance the job market. For example, areas of high growth may struggle with unfilled vacancies, while in other regions there may be persistently high unemployment Europeans keen and willing to move abroad to live and work - or even to commute across borders for their job - can help to redress this imbalance, while reaping all the benefits that being part of another culture can bring.

A self-sustaining dairy wastewater treatment plant that uses treatment by-products to power itself and recycles waste solids and water could revolutionise water purification.