抄録
Recently especially after 1990, we have experienced so many
natural disasters or abnormal climate changes which might have
been caused by global warming. Now it became common
understanding that the green house gas or CO2 emitted by the
combustion of fossil fuel is the main cause of the global warming.
Reflecting the economic growth and increase in population, the
consumption of fossil fuel is expected to increase largely during
this century especially by remarkable energy requirement in
developing countries. Japan has committed to decrease GHG
(green house gas) emission level by 6% compared with 1990
emission level at the 1st Commitment Period (2008-2012) given by
the requirement under Kyoto-Protocol. On the other hand, Japan
also has to meet the energy requirement needed during its term,
even though the increasing ratio is so mild compared with the past
or developing countries. However recent forecast expects GHG
emission level at that time will exceed about 13 % over the 1990
level, which forces Japan to take further energy saving technologies
such as adopting higher efficient gas turbine cycle. This paper
explains the Japanese energy situation, future energy and demand
prospect, and finally the outline how to meet the above mentioned
CO2 emission target, focusing the importance of energy saving
technologies.
