Deep Carbon Observatory quantifies emissions

摘要

Humanity's annual carbon emissions are between 40 to 100 times greater than all volcanic emissions,according to the Deep Carbon Observatory.The DCO-a community of more than 1,000 scientists who share research on the Earth's carbon composition-revealed that volcanoes and volcanic regions emit 0.28 to 0.36 gigatonnes(Gt) of CO,per year.This compares to around 9.9 Gt of carbon emitted per year by human activity,through the burning of fossil fuels and forests.”In order to understand the possible effects of this perturbation,there is a need for scientists to understand other catastrophic perturbations in Earth's history and to evaluate the sources and sinks of carbon,”the DCO's findings from a 10-ycar study,published as a series of papers in Elements,reads.