For those watching the climate, learn to follow and monitor the Sun's geomagnetic index, not CO2. The index fell to an all-time-low of only 1! See discussion and charts here,
http://wattsupwitht hat.com/2010/ 01/07/suns- magnetic-index-reaches-unprecedent-low-only-zero-could-be-lower-in-a-month-when-sunspots-became-more-active/#more-14980
The correlation between solar magnetic field and climate is like this:
weak solar geomagnetic field --> more galactic cosmic rays (GCRs) entering the solar system and the EArth's atmosphere --> more clouds formed --> less sunlight enters the planet surface --> global cooling.