Global warming, acid rain, deforestation, pollution, extinction, melting ice caps, CO2 emission,oil slick, acid rain, nuclear fallout etc. Yes we are all going to hell in a basket. Its also conceited to think that we are doing nature a favor by our positive action. We should realize that we need more saving than the planet. Whatever happens, nature will find a way while we as a species disappear off the surface of the earth. Remember we are doing it to save our own skins!