Measurements of ancient air bubbles trapped in Antarctic ice offered evidence that humans have been changing the global climate since thousands of years before the industrial revolution.
Beginning 8,000 years ago, atmospheric levels of carbon dioxide began to rise as humans started clearing forests, planting crops and raising livestock, a scientist said Tuesday. Methane levels started increasing 3,000 years later.
8000 years?? LOL, The Vostok ice cores show that CO2 has always increased after increasing temperature. Mainly from release from solution from oceans, increase in biomass (animals & decaying/burning vegetation, etc.)
