Carbon Dioxide graphs from the last 400,000; 1000; and 25 year ranges
The animation shows a graph of carbon dioxide (on the y-axis) versus time (on the x-axis). First data is shown from about the last 400,000 years. Next, this graph slides to the left and a new graph slides on showing carbon dioxide from the last 1000 years. NOTE: the y-axis scale remains the same. Finally, a graph showing carbon dioxide from 1980 to 2005 is shown. The industrial revolution is shown as a blue line. Lake Vostok ice cores provide data from about 400,000 BC to about 4000 BC; Law Dome ice cores provide data from 1010 AD to 1975 AD; Mauna Loa observations provide data from 1980 to 2005.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 22.214.171.124.0