Here is a 3 minute video of atmospheric carbon dioxide from 1979 until January, 2012:
National Oceanic & Atmospheric Administration’s (NOAA) Earth System Research Laboratory (ESRL) Global Monitoring Division is a wonderful resource.
There are other wonderful videos and graphics available on NOAA ESRL’s website.
Their mission is “providing the best possible information on atmospheric constituents that drive climate change, stratospheric ozone depletion, and baseline air quality.
ESRL’s Global Monitoring Division conducts sustained observations and research related to global distributions, trends, sources and sinks of atmospheric constituents that are capable of forcing change in the climate of the Earth. This research will advance climate projections and provide scientific policy-relevant, decision support information to enhance society’s ability to plan and respond.”