Sentence:  But Green issues are already a contested zone, already a site where politicization is being fought for. In what follows, I want to stress two other <WSD>aporias</WSD> in capitalist realism, which are not yet politicized to anything like the same degree. The first is mental health. 
Meaning of the word marked with <WSD> tags:  An insoluble contradiction in a text's meaning; a logical impasse suggested by a text or speaker.