Top of PageWhich human activities contribute the most greenhouse gases to the atmosphere?
The burning of fossil fuels – primarily coal, oil and natural gas – currently accounts for between 70 and 90% of all human emissions of carbon dioxide, a major greenhouse gas. Fossil fuels are used for transportation, manufacturing, heating, cooling, electricity generation, and other applications. The remainder of the carbon dioxide emissions comes from human land use activities such as ranching, agriculture and the clearing and degradation of forests. Other primary sources of greenhouse gases include the production and transport of fossil fuels, agricultural activities, waste management and industrial processes.
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