Carbon dioxide emissions from energy use are projected to increase from 1,559 to 2,237 million metric tons carbon equivalent
between 2001 and 2025, an average annual increase of 1.5 percent.
Although energy intensity (consumption per dollar of gross domestic product) decreases in most of the world through the forecast period, total emissions are expected to grow faster than in the 1990s, rising from 6.1 billion metric tons carbon equivalent
in 1999 to 9.9 billion tons in 2020.
Rising energy demand, retiring nuclear capacity, and slow renewables growth contribute to an increase in energy-related emissions of carbon dioxide of about one-third, from 1,562 million metric tons carbon equivalent
in 2000 to 2,088 million metric tons in 2020.