Increasing CO2 has been driving warming for thousands of years.
Answer: CO2 increased while temperature fell over the last 8,000 years.
Over the last 8,000 years, carbon dioxide has been increasing while temperatures fell.
Source(s): Temperature: Alley RB (2004) GISP2 Ice Core Temperature and Accumulation Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution,
CO2: Barnola JM, Raynaud D, Lorius C et al (2003) Historical CO2 record from the Vos-tok ice core. In Trends: A Compendium of Data on Global Change
CO2: Barnola JM, Raynaud D, Lorius C et al (2003) Historical CO2 record from the Vos-tok ice core. In Trends: A Compendium of Data on Global Change
