The 20th century brought unprecedented economic prosperity, and it has been called ‘the century of the economy’. In the middle of the century, mainstream economics prospered as ‘the queen of social sciences’. However, there were dark sides to prosperity. In particular, environmental problems became acute towards end of the century. Economics was unable to present a fundamental solution. Has Marxian economics demonstrated its power as a critique of economics in this situation? Regrettably, it lapsed into a crisis over problems concerned with increasing economic growth, even before mainstream economics did so too.