rtant? Well, it is pretty obvious. If 
CO<INF>2</INF> captures heat and it traps heat and you increase the 
carbon dioxide, you are going to increase the energy that is trapped in 
the Earth and the temperature of the Earth if it is not used in some 
other fashion. And that is indeed what has happened. We see 
temperatures spikes shown in these blue areas. And the blue shows the 
variations and, of course, the temperature does vary to some degree 
from year to year and even decade to decade. But what we see