Thoughts from the abyss

According to the National Academy of Sciences, the Earth is indeed warmer than it’s been in over 400 years. Which in return, they say, supports the fact that global warming does in fact exist. Think that’s the case? I know personally, I’m confused at times about global warming. One time you read something that supports it, the next you read something that dismisses it. Regardless, all the junk we dump into the atmosphere on a daily basis, most certainly can’t be doing Mother Nature any good. According to recent studies though, Earth is definitely heating up. So, are we to blame? Or is it simply the nature of the universe?