Developed countries who sign this protocol agree to cut their collective greenhouse gas emissions by five percent since 1990 by sometime between 2008 and 2012.
Retrieved from Wikipedia CC BY-SA 3.0
To date, more than 147 countries have ratified and signed the protocol.
Retrieved from Wikipedia CC BY-SA 3.0
This includes not denouncing others who have signed this protocol.
Retrieved from Wikipedia CC BY-SA 3.0