Climate change is very real. For example, the average climate of the northern hemisphere is so cold as to cause the ground to be buried under a thousand feet of ice. The cycle of glacier on/glacier off takes place every several hundred thousand years and can be clearly seen in many ways. Even as the science is settled that glaciation has taken place, the causes are still undergoing vigorous debate.
With respect to the idea that humans are causing harmful changes to the climate at this very moment, I am waiting for some peer-reviewed papers that propose what the optimum climate is for our biosphere. The first question that would naturally flow would be where is our current climate and trend in relation to this finding.
Strangely, nobody seems interested in this vital comparison. Not so strangely, the solutions that are frequently demanded in the most urgent voice, all converge on a socialist worldview: statism, bigger government, higher taxes, less personal liberty. That bigger picture tells me all that I need to know about “climate science”.
Aha! You disagree without refuting the Science! Ergo you are a Climate Change Denialist!
Don't bother arguing with big government enthusiasts. I've sadly come to the conclusion they are either zealous fanatics who don't bother concerning themselves with anything which might be contrary to their agenda, or are just plain conniving hypocrites who want to use government to pick someone's pocket. The apathetic and feebleminded do not fall into either category and persuading them of anything, even if successful, is pointless because it won't matter at all. All that matters is whoever has the attention of the masses right now to get some Change done.
As we sadly approach the gradual decay of our society into a pure democracy it's plain we are on the cow path to serfdom...