That oceans and biosphere are a sink is a result of the rising CO2 concentration in the atmosphere caused by us; before that they were in balance. Our fossil carbon emissions end up roughly half in the air and a quarter each in ocean and forests. Details: https://t.co/BGiZht5LfL #ClimateChange #CO2Emissions #Biosphere #Nospecificcountriesarementionedinthetweet.