Increased nuclear energy use is tied to the only scenario that cuts global CO2
emissions below 2005 levels by 2030, according to the World Energy Outlook
2007 study, released in London November 7.

The International Energy Agency annual study evaluated three scenarios -- a
reference scenario in which the status quo is maintained; an alternative
policy scenario, which involves implementation of CO2 reduction plans that
governments are "already considering;" and a so-called 450 stabilization case
scenario. The latter refers to a national pathway to long-term stabilization
of the concentration of greenhouse gases in the atmosphere at around 450 parts
per million.

The IEA study showed that even with the alternative policy scenario, global
CO2 emissions will still be one-quarter above current levels in 2030. In the
450 stabilization case, global emissions would peak in 2012 and then fall
sharply below 2005 levels by 2030. Emissions savings in the latter scenario
come from improved efficiency in industry, buildings and transport, switching
to nuclear power and renewables, and the widespread deployment of CO2 capture
and storage. IEA said that "exceptionally quick and vigorous policy action by
all countries, and unprecedented technological advances, entailing substantial
costs, would be needed to make this case a reality."