Do I feel it getting hotter ? I cant answer that one.
Truths we can not deny:
The concentration of CO2 in our atmosphere is higher than it ever was in human history.
The ozone layer has holes, reportedly they stopped growing recently. Soon we can expect them to shrink.
Sour rain is still common in many places.
Its too complex of a topic for me to fully understand, at least without putting in extensive research effort. But if we cant tell what a change might do, we better do not change it unless we are sure about the effects.
I believe there is hope, if you look at CO2 concentration charts you might get really concerned. But our flora and ecosystem as a whole can handle it, if we make the change of course. Compare a CO2 chart to, say a chart of historical lead pollution and you'll see crazy spikes are not the end of our world. The analogy sucks I must admit.
Earth can set things right again.