in fact, human emit 26 gigatonnes of co2 per year while co2 in the atmosphere is rising by only 15 gigatonnes per year - much of human co2 emissions is being absorbed by natural sinks.
in fact, human emit 26 gigatonnes of co2 per year while co2 in the atmosphere is rising by only 15 gigatonnes per year - much of human co2 emissions is being absorbed by natural sinks.
greenhouse gas:109
in the modern era, emissions to the atmosphere from volcanoes are approximately 0.645 billion tonnes of co 2 per year, whereas humans contribute 29 billion tonnes of co 2 each year.