Al Gore presented graphs in the movie "An Inconvenient Truth" showing carbon dioxide (CO2) and temperature change from Antarctic Vostok ice core records as evidence that CO2 causes climate change.
But he got cause and effect reversed! The record actually shows that the CO2 increase lagged the warming by about 800 years. Temperature increases cause the oceans to expel CO2, increasing the CO2 content of the atmosphere.
The ice core data proves that CO2 is not a primary climate driver.