Yet despite this new awareness, the means to act are lacking. The competitive clusters could make a real contribution to promoting green training. The current system of urban planning in France, structured since the 2000 “Solidarity and Urban Renewal” (SRU) law in accordance with a three-tier system, seems to frustrate such a systemic approach. The green growth objective announced in the Grenelle context constitutes a real opportunity to restore to urban planning the soundness and relevance that it has largely lost.