Human activity definitely has an impact on our climate. Industrialization has contributed to a rise in global temperatures and a change in ocean current patterns, resulting in abnormal weather all around the world—whether it be droughts and heat waves, or blizzards and hailstorms, strange weather is occurring where and when unexpected. Having said that, I don't think there's really a sharp increase in disasters; rather, there's only a perception of such, thanks to how much easier it is now to spread information. While seventy years ago, it would have taken days or even weeks for news to go from one hemisphere to the next, now it takes moments. And so, we get barraged with simultaneous news of earthquakes and tornadoes and tsunamis, more than what we have the capacity to digest, and we develop this perception that disasters are occurring more and more.
The Earth has gone through much worse than whatever it is we have right now. The Earth has gone through volcanic eruptions on a global scale, and ice ages, and even collisions with meteors as large as mountains. If we consider that, we realize that we're actually at a relatively calm time in Earth's geological life. I don't think the world is ending. It will continue to go on for billions of years to come.