Global CO 2 emissions were over 5% lower in Q1 than in Q1 19, mainly due to a 8% decline in emissions from coal, 45% from oil and 23% from natural gas CO 2 emissions fell more than energy demand, as the most carbonintensive fuels experienced the largest declines in demand during Q1 US greenhouse gas intensity and related factors, Sources Emissions EIA estimates Data in this table are revised from the data contained in the previous EIA report, Emissions of Greenhouse Gases in the United States 08, DOE/EIA0573(08) (Washington, DC, December 09)In discussions on climate change, we tend to focus on carbon dioxide (CO 2) – the most dominant greenhouse gas produced by the burning of fossil fuels, industrial production, and land use changeWe cover CO 2 – global emissions, annual, cumulative, per capita, and consumptionbased emissions – in great detail in our CO 2 emissions page But CO 2 is not the only greenhouse gas Co2 Emissions From Commercial Aviation 13 18 And 19 International Council On