Yes, the human race is screwing things up. We're killing ourselves.
I'm not going to fight this with conventional logic. That's overdone. So is sarcasm. I wish to preserve some semblance of originality. Which is, ironically, itself not original I suppose because many people are original, so average is the most unique you can be.For thousands of other similair arguments, go to google and search "debates human influence environment". You'll find much more compelling arguments on both sides than I could ever hope to convey with original, more akin to conventional, ideas.
The Earth is a soup. Alphabet soup, because that's easiest to work with. The bowl is the atmosphere, the broth represents natural resources, the one eating the soup nature and the letters the different life on Earth. For arguments sake, humanity is the letter X. The spoon is demand. The spoon is dipped into the soup, and it takes some broth and letters. Gradually, the broth and letters are depleted. More soup is poured, and more letters enter the soup. Among them X, a letter which is capable of constructing thoughts that go against instinct. A spoonful of soup is eaten. X notices the broth and letters going away, and thinks "Surely I have caused this because I am absorbing the broth. I must not absorb the broth". It no longer absorbs the broth, and is quickly found by the spoon, the wielder of whom noticed the pasty color of a drying letter. X is eaten, thinking he has caused his own demise, unknowing of the deeper forces of the spoon and his eventual killer. The soup is eaten and the bowl rinsed. Eventually, more soup is poured, and the cycle continues.The bowl breaks, and it is replaced.
Just my two cents, for what it is (or isn't) worth.