So you think our carbon-dioxide emissions are not a problem?

Here is a depiction of CO₂ levels over the last 800,000 years, also showing current and projected levels over the coming century or so:

h/t Another Nail In The Coffin

Of course, one needs to look at this in the context of how long human civilisation has been around:

Image by John Garrett. h/t Skeptical Science

So, CO₂ levels are higher than at any time since organised human civilisation started to develop. Physics tells us that increased CO₂ = increased temperatures. Are you starting to see the problem?