volcanoes emit around 0.3 billion tonnes of co2 per year.
volcanoes emit around 0.3 billion tonnes of co2 per year.
nw rota-1:74
the volcano produces about 400,000 ± 100,000 tonnes per year (400,000 ± 100,000 t/a) of co 2, which is about 0.2–0.6% of the worldwide co 2 flux at subaerial volcanoes.