The planetary boundaries concept has profoundly changed the vocabulary and representation of global environmental issues. The article starts by highlighting the strengths and weaknesses of planetary boundaries from a social science perspective. It is argued that the growth imperative of capitalist economies, as well as other particular characteristics detailed below, are the main drivers of the ecological crisis and exacerbated trends already underway. Further, the planetary boundaries framework can support interpretations that do not solely emphasize technocratic operational approaches and costs, (...) but also assume that these alone can be the solution. (shrink)

The notion of societal boundaries aims to enhance the debate on planetary boundaries. The focus is on capitalist societies as a heuristic for discussing the expansionary dynamics, power relations, and lock-ins of modern societies that impel highly unsustainable societal relations with nature. While formulating societal boundaries implies a controversial process – based on normative judgments, ethical concerns, and socio-political struggles – it has the potential to offer guidelines for a just, social-ecological transformation.

In the analytical colour debate there are currently two positions facing each other: color objectivism and color subjectivism. For color objectivists, colors are purely physical properties, whereas for color subjectivists they are phenomenal properties that are ontologically dependent on subjects. Although both positions have strong arguments, a stalemate and idleness in the debate has been evident for decades that requires explanation. In this essay I will show, on the basis of some considerations of Carnap's color view, what causes the stalemate (...) and idleness situation structurally and how it is 'solved' after Carnap. (shrink)