Reducing Transport Greenhouse Gas Emmissions - Trends and data 2010
A drop in travel volumes in the wake of the global economic crisis has decreased Greenhouse gas emissions from the transport sector in many countries. The long-term trend, however, continues to be towards an increase in CO2 emissions from travel activity. The report suggests that global CO2 emissions from transport grew by 45% from 1990 to 2007. It concludes that from 2007 to 2030, transport emissions will continue to grow by approximately 40%. This is only slightly lower than pre-crisis estimates and already takes account of many planned efficiency improvements.
Road sector emissions dominate transport emissions, with light-duty vehicles accounting for the bulk of emissions globally. In some of the International Transport Forumâ€™s 52 member countries, road freight accounts for up to 30% to 40% of road sector CO2 emissions. Emissions from global aviation and international shipping respectively accounted for 2.5% and 3% of total CO2 emissions in 2007 and are the fastest growing sources of transport CO2 emissions.
Across the economy, the crisis of 2008 has contributed to the sharpest drop in emissions in the past 40 years, with estimates ranging from 3% to 10%. This could translate into a 5% to 8% decrease in 2020 emissions from their pre-crisis projected levels, depending on the strength of the economic recovery. Despite countries gaining some breathing room due to the post-crisis drop in GHG emissions, fundamental drivers for increased transport sector CO2 emissions remain and necessitate coordinated policies to limit future emissions. Some countries, notably France, Germany and Japan, have seen their road CO2 emissions stabilised or decrease even before the recession of 2008-2009, despite economic and road freight growth over the same period.