The amount of carbon dioxide in the atmosphere is increasing by consumption of a fossil fuel, the deforestation, etc. Since there is a thing called the greenhouse effect in carbon dioxide, the earth can warm.
By data, it is supposed in the 1st century of the past that normal temperature was gone up by 0.5-0.7 degrees C, and the increasing rate is high especially for the past 20 years.
The ice of the North Pole or the South Pole melts, a rise in the sea level is also set because the earth can warm, and countries, such as Tuvalu and Kiribati, are said whether to sink the whole country in the future for the small island country.
Problem
Although the rate from which the advanced nation is the cause is large, the practical question has spread also to the developing country.
Measure
By publishing the Kyoto Protocol aiming at carbon dioxide emission curtailment, it means that restrict on carbon dioxide emission of an advanced nation. However, there is also a problem of United States that have most carbon-dioxide emissions having not participated in this, and the talks which advanced nations investigated thoroughly are needed.
