What is the GHG emission due to volcanoes compared to human activities?

Question

Let's settle this ONCE AND FOR ALL. Please don't pull numbers out of a hat. I want supporting links.

Answer 1

Volcanic activity releases about 130 to 230 teragrams (145 million to 255 million short tons) of carbon dioxide each year. (see link, wikipedia).

For example, Southern's Scherer coal plant in Georgia, emitted nearly 26 million tons of CO2 in 2005 (see link below). How many coal plants are in Georgia? more than 10 ? therefore, Georgia produces more CO2 than all volcanoes over the Earth.

Add other states and countries, and cars, and flights, etc...

Answer 2

Quote

"Volcanic eruptions can enhance global warming by adding CO2 to the atmosphere. However, a far greater amount of CO2 is contributed to the atmosphere by human activities each year than by volcanic eruptions. Volcanoes contribute about 110 million tons/year, whereas other sources contribute about 10 billion tons/year. The small amount of global warming caused by eruption-generated greenhouse gases is offset by the far greater amount of global cooling caused by eruption-generated particles in the stratosphere (the haze effect). Greenhouse warming of the earth has been particularly evident since 1980. Without the cooling influence of such eruptions as El Chichon (1982) and Mt. Pinatubo (1991), described below, greenhouse warming would have been more pronounced."

Answer 3

CO2 is not the problem but part of the solution .Plants remove the CO2 and keeps the C and gives us back O2 . The earth has recycled the air for millions of years.