Yes, but...

Climate is too complex for accurate predictions - earth - 25 October 2007 - New Scientist Environment

This report notes:

Climate change models, no matter how powerful, can never give a precise prediction of how greenhouse gases will warm the Earth, according to a new study....

The analysis focuses on the temperature increase that would occur if levels of carbon dioxide in the atmosphere doubled from pre-Industrial Revolution levels. The current best guess for this number – which is a useful way to gauge how sensitive the climate is to rising carbon levels – is that it lies between 2.0 C and 4.5 C. And there is a small chance that the temperature rise could be up to 8C or higher.

To the frustration of policy makers, it is an estimate that has not become much more precise over the last 20 years. During that period, scientists have established that the world is warming and human activity is very likely to blame, but are no closer to putting a figure on exactly much temperatures are likely to rise.

Which is why I argue that the case for keeping CO2 levels down based on ocean acidification is more sound.