The fact there is disagreement about this in the scientific community leads me to believe that proper scientific methodology for determining facts was not followed. Just as the same people screamed in the ’90s about the effects of acid rain on our health, car paint, the water supply, so also this thing will pass and no will consider it just a few years from now. Have these scientists considered the fact that all the planets in our solar system over the past several years have had average temperature increases along with our planet? Could it be possible that as a fact the sun’s energy output has increased, causing a slight average warming trend in our atmosphere? Could it be this is just a front to push a deeper agenda, namely higher taxes, more government, less freedom, the redistribution of wealth?