Both global warming and cooling happen, just at different timescales. In the early Industrial Revolution when coal use was exploding exponentially due to cheap

Both global warming and cooling happen, just at different timescales. In the early Industrial Revolution when coal use was exploding exponentially due to cheaper mining and transportation the sort term net effect was cooling due to particulate emissions having a larger short term impact than CO2. However, the exponential growth slowed down as people didn’t need unlimited heating for their homes so the cooling leveled off as CO2 accumulated. Thus people in 1900 saw net heating from the exact same coal burned in 1800 that produced cooling back then. The same thing happened again with the explosion of automobile use globally before that growth curve slowed down. And it’s even part of climate models where if you stop all fossil fuel emissions you get a few years of additional warming before things stabilize.