Industry contributes directly and indirectly (through consumed electricity) about 37% of the global greenhouse gas emissions, of which over 80% is from energy use. Total energy-related emissions, which were 9.9 GtCO2 in 2004, have grown by 65% since 1971. Even so, industry has almost continuously improved its energy efficiency over the past decades.

This Synthesis Report is based on the assessment carried out
by the three Working Groups (WGs) of the Intergovernmental Panel
on Climate Change (IPCC). It provides an integrated view of climate
change as the final part of the IPCC