Low emission prices have stirred up discussion about political measures that aim to increase emission prices. District heating system operators, often municipal utilities, use a variety of heat generation technologies that are affected by the emission trading system. We examine whether district...

Effective visualisations of migration flows can substantially enhance our understanding of underlying patterns and trends. However, commonly used migration maps that show place-to-place flows as stroked lines drawn atop a geographic map fall short of conveying the complexities of human movement...