Investigations/analyses are conducted on objectives, policies and measures of the world`s major countries in relation to the Framework Convention on Climate Change, particularly CO2 emission. The problem on climate change is a global issue, and the CO2 emission control is directly connected with energy consumption closely related to national economies. Therefore, interests conflict between the north and the south, and among the developed countries. The U.S. Clinton administration is beginning to show a more positive attitude than before, and aims to take the most realistic measures such as the proposed new Btu tax in the developed countries. As for EC, whether or not CO2 stabilization targeted in 2000 is made possible depends on how much Germany can achieve the target. British strong opposition attitude toward the carbon/energy taxes presents a question to the target to be attained by 2000. Hereafter, tie-ups jointly taken for CO2 control measures between developed countries and developing countries are expected to be a matter of increasing importance. 43 figs., 43 tabs.