The author treats in this article the essence of some economic models (theories) whose objectives are to increase the wealth of the owners, maximizing their profits. This attitude is a threat to the environment. The ecological situation of the Earth worsened, especially during the industrialization period. This situation required the transition from the traditional economy to the concept of circular economy. The examples of the European Union demonstrate the benefits of waste recycling, both for the economy and for improving the quality of life of people. We believe that COVID-19 is a bad result of people’s attitude towards nature, for which humanity is punished. The fight against the pandemic requires colossal material and valuable resources from governments. Thus, for example, the budget of the Republic of Moldova makes a colossal effort in the form of social costs to help people suffering from this pandemic. Improving the situation would require the imposition and control of manufacturing companies on the use of treatment systems and another general solution would be to educate the population to keep the Earth for the descendants of our descendants.