Until recently, only a few organizations or governments, including the World Bank, the American state of Massachusetts, and the French region of Île de France, issued green bonds, and generally the amounts involved were modest.
Fino a poco tempo, solo poche organizzazioni e governi, tra cui la Banca mondiale, lo Stato del Massachusetts e la regione francese dell'Île de France, emettevano green bond, e in generale si parlava di cifre modeste.