出版社：Energy Information Administration, US Department of Energy
摘要：CO2 emissions from the combustion of fossil fuels are
proportional to fuel consumption. Among fossil fuel
types, coal has the highest carbon content, natural
gas the lowest, and petroleum in between. In the
AEO2006 reference case, the shares of these fuels
change slightly from 2004 to 2030, with more coal and
less petroleum and natural gas. The combined share
of carbon-neutral renewable and nuclear energy is
stable from 2004 to 2030 at 14 percent. As a result,
CO2 emissions increase by a moderate average of 1.2
percent per year over the period, slightly higher than
the average annual increase in total energy use (Figure
107). At the same time, the economy becomes less
carbon intensive: the percentage increase in CO2
emissions is one-third the increase in GDP, and
emissions per capita increase by only 11 percent over
the 26-year period.
