After signing an international treaty, such as the Climate Change Convention or the Kyoto Protocol, a country has to ratify the commitment, often with the approval of its parliament or other legislature. The ratification instrument must be deposited with the UN Secretary-General to, then, begin the 90-day count for the ratifying country to become an integral party. There are minimum ratifications thresholds for the entry into force of international treaties.
Anthropogenic emissions
Emissions produced as a result of human action. For example, large amounts of carbon dioxide are being released into the atmosphere by activities such as the burning of fossil fuels, agriculture, cement making, and so on.