Well, what the pictures shows is factual, but you won't satisfy the denialists without good sources
Personally I don't feel too worried about climate change, anthropogenic or not
Frankly, researching the topic is win-win
If it turns out to be true, we can take precautionary steps to secure our civilization, and we also learn a lot about the climate system
If it turns out to be false, the investigation will still be worth it, as we will expand our knowledge of the system greatly, and we will not be doing nothing about what could be a real catastrophe
Denialism is basically postured ignorance. Global Warming goes against the 'common wisdom' of many on the Right. Common Wisdom, of course, is not based on fact, but what is brings one the most personal comfort
So I cannot help but feel for some of them, they want to see the world as they want it, and not as it is. Idealists, but good natured idealists, for the most part
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Opportunities multiply as they are seized. -Sun Tzu
Nature creates few men brave, industry and training makes many -Machiavelli
You can safely assume that you've created God in your own image when it turns out that God hates all the same people you do