The following chart describes the key indicator of emission of Greenhouse gases worldwide. It shows the emission of carbon dioxide, methane, nitrous oxide and few other greenhouse gases from 1990 to 2010.

The emissions are described in million metric tons of CO2e carbon dioxide equivalents.


Figure 1: Global Gas Emissions by Gas, 1990 to 2010


Figure 2: Worldwide global gas emissions by sector, 1990-2010


Figure 3: Worldwide greenhouse emission by region, 1990-2010

Data Source

The above data of different indicators of greenhouse gas emission has been provided by World Research Institute’s CAIT Database. You can access it online at: http://cait.wri.org. CAIT gathered the above data from different organizations like the International Energy Agency, the U.S Carbon Dioxide Information Analysis Center, and Food and Agriculture Organization of the UN.

Key Points

  1. In figure 1, methane, nitrous oxide and HFCs, PFCs and SF6 remained almost constant from 1990 to 2000. However, the CO2 emission increased consistently during the same period. Although former greenhouse gases saw minor increment with an increase of 15% in HFCs emission and 9% in nitrous oxide from 2000 to 2010, the CO2 emission increased rather significantly. In just 20 years, carbon dioxide net emission increased by almost 42%.
  2. The overall greenhouse gases emission increased from roughly 33 billion metric tons to almost 46-47 billion metric tons of carbon dioxide equivalents (CO2e).Figure 2 and 3 describe the growth of greenhouse gas emissions by sector and by region respectively. While the energy sectors worldwide saw an increase by 71% in emissions, followed by agriculture sector with 13% increment. Figure 3 indicates that some regions of the world are emitting more carbon dioxide than the rest. For example Asia and United States saw maximum surge in the greenhouse gas emissions followed by Europe. Other regions’ emission such as Africa, Latin America, Canada remained significantly lesser.