Just goes to show eh that eons reveal all > not seasons, decades or centuries.
When the major ice occurred 650,000,000 yrs ago, CO2 sank to the bottom of the oceans as ice reached the 30th parallel ie a tipping point of 'no return' > voila an ice age
Did it last for a decade? NO
Did it last for a century? NO
It lasted for 25,000,000 yrs.
Q. And what pulled the globe out of it?
A. Volcanoes and mid ocean rifts > CO2 - needed for life
And I'm not perturbed about CO2 emissions coming from cars. SO2 is much worse for our planet.