No, it is actually VERY VERY SIMPLE.
Now: to observe the actual effects on the world, is not so easy.
The fact of the matter is that your examples aren't a direct cause/effect. If they were, we could see immediate results yet we don't. Plus the planet is large enough to have large "micro-climates", resulting in even more obfuscation of the data.
Of course, it doesn't help that climate change doomsayers have been at it for 40+ years now, the doomsaying itself a product of how difficult climate science is. Weren't we all supposed to be under 20 feet of water by now? The ice at the poles gone, the poles themselves being the only habitable parts of the world left? And so on, and so on...
Face it; climate science is *hard*. So difficult, in fact, that the weather forecasters still get it wrong. Understanding the science is restricted to the few who have made it their lives to understand it, and of course who knows how biased they are. You'll never sell the general public that way.
No. You have to make the issues smaller and localized. Personable.