Until recently, human CO2 emissions were responsible for ~10% of the variance in year-to-year CO2 growth rate. But a new analysis says human CO2 emissions have been slightly declining for the last decade. So 0% responsible, apparently. CO2 emissions derived from human activity (fossil fuel combustion and land use changes) only account for about +0.1 … Continue reading Global Human CO2 Emissions Have Been On A Slightly Declining Trend Since 2011