I've never seen a denier produce any good science to back up their claims. It's ALWAYS something political.
The simple fact that the earth has cycled through numerous ice ages and warm periods, and has done so before man ever entered the picture, is pretty much all the "good science" that you need. There is no evidence that what we have found, is any more than another spike in that long range history. Nor, do I dispute the idea that greenyhouse gasses can lead to global heating to some insignificant degree. What I do dispute is that pollution and greenhouse gasses have any more effect on climate change, than a rock in the river has effect on total water flow in that river.
Science is demonstratable evidence, not concurrence. According to the climate change worshipers, every weather event that occurs is evidence of global climate change. It gets hot, that is evidence of climate change. It gets cold, that is evidence of climate change. A bad storm is evidence of climate change. No storms, is evidence of climate change. Drought is evidence of climate change, but rain is also evidence of climate change. Go figure! You can't lose with that kind of logic train.