There are certainly other natural mechanisms besides the ocean CO2 reservoir, and certainly other natural feedback loops between temperature and CO2. (illconsidered.blogspot.ru)
Such stability suggests some form of natural feedback mechanism that has compensated for far more severe changes in inputs than man - made CO2. (realclimate.org)
This makes the vehicle more agile, while still providing the driver with natural feedback about the driving dynamics. (greencarcongress.com)