The COVID-19 outbreak is rampant. As we are writing, 3 billion people are in lockdown. The economic consequences of this situation are far-reaching. In some countries, whole sectors of industry are shut down. NASA satellite images reveal drastic decreases of greenhouse gas emissions in areas that are usually high emitters, such as China or northern Italy. The economic crisis that has been raging for several years has erupted under the impact of the lockdown, striking another blow to the global economy. Some reactionaries rejoice at this and go so far as to assert that "the virus is the solution to save the planet!” Marxists must staunchly counter this nonsense.