Well, sure climate changes. I don't believe we contribute to it. It's a cyclical, autonomous ecosystem.
CO2 mass saturation means more CO2 has zero further effects on temperature.
Discussion
I don't think our CO2 contributes much to climate change directly, but other human activities have noticeable effects: con-trails reduce temperature by reflecting more sunlight, urban development increases local temperatures, cloud seeding increases precipitation, etc.
The greening from CO2 will also impact local climates in various ways.
That's the leading narrative - CO2 - from the people who tell us this is an existential threat when in reality more CO2 is good for plants and I would argue that overall warmer temperatures would be a net positive. I don't know how people have been convinced that a degree or two celcius would be catastrophic.
Funny enough, the expansion of urban environments is one of the ways they have skewed temperature data to manufacture this so called problem.
No one asked for cloud seeding or any of this. They took it upon themselves to force it on everyone and then pretended like it wasn't happening. Contrails are short and dissipate pretty quickly. Chemtrials disperse and cover the entire sky.