Since 2003 CO2 has risen further and yet the global temperature trend is negative.

FORBES: Carbon Dioxide Emissions Up Sharply, Yet Temperatures Are Flat?

The real, emerging science, as the Heartland publications indicate, is that the feedbacks are more likely to be offset by negative feedbacks, resulting in a much smaller net temperature change.

FORBES: Fakegate: The Obnoxious Fabrication of Global Warming

What is the temperature rise, after the effects of both positive and negative feedbacks, from a doubling of atmospheric CO2-e?

FORBES: Not Quite Professor Krugman, Not Quite