Rising Co2 can not cause "climate change" which is a trap that many liberals fall into.

It is thought that increasing Co2 in the atmosphere is correlated with increasing temperatures on average. But reality is that all that happens is increased precipitation near the equator so far we have observed the last 40 years or so.

When a real ice age nears you would see increased precipitation at both poles which means greater solar deflection as the ice caps increase. Which then means lowering of temperatures worldwide entering an ice age.

Keep in mind how temperatures rise leading into an ice age isn't fully understood. Some say it has to do with solar activity but that is only one factor and really it is a combination of factors.