I only know as much about our planet as Google allows me to research, F11.
I think films like 2012, and the latest film Los Angeles - 2011 are all based on a certain amount of fact. Obviously Hollywood has added their usual dose of imagination and artistry to them. But the truth is we are residents on a living planet, which is part of a living universe and changes do occur and always have. Some are minor and some are great enough to wipe out a whole species of animal like the Dinosaurs. Since the Biblical Flood, which, according to some Biblical scholars, was 7000 years ago this May, we have enjoyed a fairly stable planet. The problem with most of us is that we have taken this stability for granted, and drawing from that, we think we are invincible. For those who have been touched by these disasters, I would imagine their attitude has changed dramatically. I honestly don't think that mankind has caused enough damage to count though, but obviously, it's time to re-think the way we live when it comes to consumerism.