Ozone: definately bigger issue. Radiation causes things to die, and actually probably has a bigger effect on climate change than the crap being pumped into the atmosphere. Besides, what we're seeing affecting the weather today is not global warming. That takes more time than what you might think. 1 degree every 100 years, that's the average increase- hardly a cause for concern.
What we're seeing is known as *heat pollution*, which has to do with the amount of heat energy produced on the planet itself. Stuff like nuclear plants and household appliances and winter heating of homes. The energy leaks out and actually does heat the entire neighborhood. If people turned off all energy producing devices and spent a year without them, most temperatures would slide comfortably back into average again.
That being said, the effect on the oceans will actually cut global warming back down very quickly. More heat= more algae= more oxygen= drop in temperatures. Nature is self-correcting and self-regulating, it compensates for stuff like this. You should be more concerned of the direct harm we're causing to life on this world, not the affect on temperatures.
