Original sentence: Because of this, critics question the value of the Kyoto Accords.Current estimates indicate that even if successfully and completely implemented, the Kyoto Protocol is predicted to reduce the average global temperature by somewhere between 0.02°C and 0.28°C by the year 2050 (source: Nature, October 2003)
Edited sentence: Because of this, critics question the value of the Kyoto Accords; proponents note that Kyoto is only intended as a first step.Some current estimates indicate that even if successfully and completely implemented, the Kyoto Protocol is predicted to reduce the average global temperature by somewhere between 0.02°C and 0.28°C by the year 2050 (source: Nature, October 2003)