Regardless of whether or not global warming is significantly influenced, or only minorly influenced, by human civilization - I think we can all agree that we, as a species, needs to treat our planet significantly better than how we do. CO2 emissions and their affect on the global climate is only part of the picture... an abundance of plastic trash in our oceans & landfills (and everywhere else), deforestation, over fishing, other greenhouse gas emissions, etc etc all play a factor in our planet becoming a less hospitable, and hence, more toxic place for us to live.
It was recently discovered that the reason for the significant drop in male fertility and the shrinking area of the 'taint' is due to microplastics being in our water supply and food supply. This has a direct impact on the human ability to reproduce.
What about the affects of chemicals and plastics in everything we eat, drink, apply to our bodies, and wear? It has a significant impact on cancer rates.
I wouldn't have such a huge issue with the carbon tax if the money collected from it went directly to funding and finding ways to not only reduce our carbon emissions, but in safer alternatives to things we use every day that are hurting us in the long term.
We also have to remember that humans, by our very nature, tend to jump on one bandwagon or the other. We tend to say "yes I agree with this" or "no, I don't agree with it" -- and then inherently find reasons to justify our positions, even if it is subconciously. We tend to forget that it is okay, and sometimes more wise, to look at an issue and remember that both sides have valid points - and the truth/solution is somewhere down the middle.
0.02
Edit - Oh wow, I didn't think the thumbnail of the video would show here, just the link!! Well, with a headline like that, should be an attention grabber