We draw from stocks of non-renewable natural resources (for example, oil and metal ores), and we deteriorate or modify the quality of other resources (for example, water and arable land) by imposing on them a rhythm of exploitation superior to their capacity for regeneration. In fact, the exploitation of non-renewable resources frees the speed of economic growth from that of ecological renewal, aggravating the deterioration of the biosphere, including irreversible climate changes.