Learning about CO2 and climate? Here's a handy graphic to show how just how low the current levels of this vital gas are.

Source: http://i90.photobucket.com/albums/k247/dhm1353/GeoCO2.png

For many more very smartly presented charts, with occasional other items such as press releases to add some context. click rightwards from here: http://s90.photobucket.com/user/dhm1353/media/Byrd0.png.html

Hat-tip: Tom Nelson