Gauging only by the targets set by the Kyoto protocol it can be concluded that the treaty was not as effective as it should have been. However, given the long lapse of time between adopting the protocol and each country ratifying the protocol, it could be said that the period was not enough for the protocol to exhibit its effectiveness.
Enough awareness of the cause has been created and the mechanisms of the protocol are in full motion. However, the desired targets are not in sight. Nevertheless, either by continuing the process beyond its expiry or by introducing a more powerful transformation arrangement, the effectiveness of the Kyoto protocol can be experienced.
Sans the target, it can be said that the protocol was effective in globalizing and politicizing the goal of the UNFCCC: stabilizing the atmospheric concentration of greenhouse gases emissions to fight global warming.