The influence of recycling on resource preservation is negligible for any raw material with a greater than 2% per annum increase in world production. It is only if the annual raw material consumption growth rate is below 1% that recycling has a significant positive impact. It can then provide over one hundred years of respite. However, … a growth rate in total material consumption below 1% is insufficient on its own, and, in addition, requires a very high recycling rate (more than 60 to 80%) in order to delay significantly the resource depletion rate. The time shift for cumulative consumption is highly sensitive to the growth rate of total material consumption (primary + secondary). The slower the growth, the more recycling contributes to ‘buying time’ before resource depletion. Recycling has a higher impact if material residence time in the economy is short; conversely, its impact is smaller for a long residence time. Finally, the impact of recycling must be analysed in relation to present economic parameters (as trends), not on the basis of an assumed future slowing down of consumption. As a whole, the relative impact of cumulative present-day recycling becomes negligible after a few decades in view of global production growth.