<<This is a totally selfish, materialistic attitude. If you poison a lake, it will take time to regenerate. Poison it 10% it's 1-10 years or so. Poison it 50% with industrial and human waste (sewage) it could take close to a hundred years. Poison it completely, all life is destroyed in that lake and some of its surrounding area, and it will likely NEVER regenerate. Something can't regenerate if you KILL it completely!>>
You couldn't destroy all life if you tried. There are bacteria living in the rockstrata that are within inches of the mantel, there are bacteria living in the sulfur plumes in yellowstone, there are bacteria and other organisms on the bottom of the ocean. For every poison you can think of there is a bacteria that thrives in and consumes that "poison". Life is eternal, we are capable of destroying some forms of life but by no means could we destroy it all.