Your math is seriously wrong, completely backwards actually.
"According to the U.S. Geological Survey (USGS), the world's volcanoes, both on land and undersea, generate about 200 million tons of carbondioxide (CO2) annually, while our automotive and industrial activities cause some 24 billion tons of CO2 emissions every year worldwide."
The second fault is logic. Volcanoes are already part of the underlying carbon cycle. They are already part of the system that stops the planet freezing.
