The proportions of solar radiation reflected by a surface or object, expressed in percentage. Snow-covered surfaces have high albedo level; ground (soil) albedo can be high or low; vegetation-covered surfaces and oceans have low albedo level. The Earth’s albedo varies mainly due to the different levels of clouds, snow, ice, vegetation, and changes in the earth’s surface.
Ratification
Ratification
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...