from what i recall mother nature will always balance itself out. I forget what the theory is, but the point is we will all be wiped off the earth before we can devastate the planet past the point of no return (i hope. Maybe world war 3 with nukes might push it past that point)
If it makes your conscious that much clearer go and buy a hybrid or electric car, put some solar panels on your house, erect a wind turbine. Become a hippy. Sad fact is there isnt the critical mass needed for a truly global shift of attitude towards the environment, though i am kind of digressing from just plain ol global warming.
Who ever brought up the ozone holes has a great point. We need time, patience and a little understanding before we can go saying that the end is nigh!
