Contributed by Corinne Le Quéré, University of East Anglia. This question keeps coming back, although we know the answer very well: all of the recent CO2 increase in the atmosphere is due to human activities, in spite of the fact that both the oceans and the land biosphere respond to global warming. There is a … Continue reading How much of the recent CO₂ increase is due to human activities? L’accroissement du CO2 atmosphérique: sommes nous entièrement responsable?