>but it is something that has to be done if we are going to avoid catastrophe What sources of pollution are we allowed to keep? What is your criteria for an a

>but it is something that has to be done if we are going to avoid catastrophe What sources of pollution are we allowed to keep? What is your criteria for an acceptable amount of human impact on the environment? If you also have information for acceptable levels of cobalt, nickel, and copper mining, and landfill usage (per capita per year, in cubic meters, I guess), that would be useful. Because every time I see any climate change story, I'm told that I absolutely have to give something up to save humanity, and I'm beginning to feel like no level of existence will be acceptable. I'm very eco conscious in my day to day life, more than most of the people in my social group. But I also realize we can't just eliminate every trace of our lives.