I'm going to try to adress as many points as possible since my last real post. I do try to listen to others and respond in turn, sorry if it sounds like I'm pushing it on you.(then again, you should see the kinds of reactions I get on RMXP's religion thread a while back...)
Kagutsuchi: I've sort of answered yours already, those are natural disasters and unavoidable. NATURAL disasters. It's a part of nature for it to happen. Volcanoes erupt. Cyclones destroy. You can't really blame a single person for it, there's really nothing to blame, shit happens.
Now pollution and stuff, however, you can blame. That company that dumps waste into the ocean? Yeah, you can actually blame people for that.
Now, for something related: Humanity pollutes. Yeah, we exist, and we do that. So, humanity = pollution, no humanity = no pollution. Pollution is so that thus, can be stopped, if humanity is gone from this world. So, pollution and damage to the environment and all this can be stopped. But it doesn't, because we exist and we are too selfish to do anything. And by anything this means more than two or three people out of every 100(I wish) recycling- that means something like 99 out of every 100 people recycling for an actual impact on the environment. I mean, if people actually actively do that, and various other things, maybe it can work.
Namkcor: I think I just adressed you in the above paragraph, but I want to add something: If humanity didn't exist, it wouldn't even be needed to recycle alumnium...
The mass killings thing:
http://en.wikipedia.org/wiki/Exxon_Valdez_oil_spilladmittedly, that was probably an accident. Still...
Holocaust a couple years back: Although I hate it, since it was a discriminatory type of killing, in the end it did benefit us somewhat(like all wars). Let's see, if it didn't exist, then let's add 11 million people to the world population. And increase it by however many generations in between. Do all that for all of the wars, and human overpopulation would be even more of a freaking problem, and it's a huge enough problem even now. And even with these catastrophes, humanity still manages to one up nature and grow even more. Sure, tsunamies and hurricanes and holocausts may kill of thousands and millions of people, yet if you look at the world population ten, twenty years later, it's still exponentially higher.