I've had similar types of reminders in the past (though not this particular one) and I've found it to be generally good advice. While we may disagree in principal, there's nothing personal about it.
You did a commendable job of coming up with your sources for your understanding of the climate change issue. The only suggestion I would make is to check the sources of those you are reading, just to make sure they are reporting what was actually written or said. It's to be expected that any organization, whether conservative or liberal, is going to raise up those items which coincide with their particular agenda while minimizing any items which contradict it. That's human nature. Even as individuals we tend to do the same thing. I know I have to remind myself constantly not to take something as gospel just because I happen to agree with it.
I am impressed by the amount of effort you put into this. I just think you might have gone one step further and checked the sources of your sources. Not only what they say but what those sources represent. As noted in my comments to Exhibit B, sometimes people tend to say what they want you to hear, and not give the whole truth. It can be hard to avoid that trap.