Global Warming: Truly Our Fault?

For years I've heard that global warming, or the effect of the temperatures on Earth rising, is caused entirely by humans. The polar ice caps are slowly melting, cutting down the population of many species. Scientists predict that when the ice caps fully melt, the ocean could rise to a level that is significantly a danger to humans. But here's my question-

Is it global warming? Or is it just our world's way of clearing its waste?

Many centuries ago, our Earth experienced an ice age that wiped out many of its species. Diversity was cut down, and the land slowly ventured back to its second succession. But what was significant about the ice ages is that they were inevitable. They were going to happen no matter what anyone did. So- is global warming really caused by humans? Or is it just Earth’s natural pattern going through another cycle?

I do not think that global warming is caused by humans. I personally believe that no matter what we do, our Earth will slowly slip into its regulated pattern. Although it is good for us to be more eco-friendly, I do not feel that it will make a difference in global warming. It is, however, making our environment a healthier one to live in.