Unless you have been living in the information cocoon created by right-wing mainstream media, I think you can omit reading the first part of this essay. What is new and valuable in this piece is Clarke's excellent examination of the deep contradictions between solving the climate crisis and the logic of capitalism. Thus, I advise skipping down to the subsection "The Compulsions of Capitalism".
Capitalist firms have no choice but to try to maximise profits and growth rather than address social needs. If they fail to concentrate on these private priorities, they are soon outcompeted and ruined. In strictly private terms, carbon polluting can make for a killer bottom line. But this privately rational choice will, in time, be collectively catastrophic.