http://fora.tv/2009/08/18/A_REALLY_Inconvenient_Truth_Dan_Miller
I have several friends who seriously doubt that climate change exists, and they think it's just an imaginary crutch being used by Toyota and Whole Foods to get money out of people. We got into a pretty "heated" debate about this last weekend when we were drunk haha.
Anyways, I personally believe that there are some very valid valid concerns. The general argument against climate change is that the earth goes through a natural warming/cooling cycle, and that we as humans have nothing to do with this.
I tend to reject this though. I don't see how you can say that our immense deforestation, industrialized mega-cities with millions of people, and enormous consumption of CO2 spewing fossil fuels have no discernible impact on the earths atmosphere. The use of CFCs and the ozone layer are pretty good examples of this. Throughout the 60s and 70s we saw a rapid expansion of the hole in the ozone layer. When it was finally narrowed down to CFC use in 1985, scientists pushed for the banning of CFCs, which happened, and now today it is generally agreed upon that we solved the ozone problem.
So basically, within 40 years we completely fucked up the ozone layer. Luckily, we were able to reverse it, but this might not be as easy in the future. Take a look at the graphs in the video. One of the first ones shows the amount of CO2 in the earth's atmosphere over a period of 600,000 years. There is a very regular pattern, from which we can easily identify the ice ages and subsequent warming of the earth. Then take a look at where that CO2 level is today. It's nearly double where it should be, and is expected to increase by another 200% during our lifetimes.
To me this isn't fear mongering, it's blatantly obvious scientific data.
Discuss.
I have several friends who seriously doubt that climate change exists, and they think it's just an imaginary crutch being used by Toyota and Whole Foods to get money out of people. We got into a pretty "heated" debate about this last weekend when we were drunk haha.
Anyways, I personally believe that there are some very valid valid concerns. The general argument against climate change is that the earth goes through a natural warming/cooling cycle, and that we as humans have nothing to do with this.
I tend to reject this though. I don't see how you can say that our immense deforestation, industrialized mega-cities with millions of people, and enormous consumption of CO2 spewing fossil fuels have no discernible impact on the earths atmosphere. The use of CFCs and the ozone layer are pretty good examples of this. Throughout the 60s and 70s we saw a rapid expansion of the hole in the ozone layer. When it was finally narrowed down to CFC use in 1985, scientists pushed for the banning of CFCs, which happened, and now today it is generally agreed upon that we solved the ozone problem.
So basically, within 40 years we completely fucked up the ozone layer. Luckily, we were able to reverse it, but this might not be as easy in the future. Take a look at the graphs in the video. One of the first ones shows the amount of CO2 in the earth's atmosphere over a period of 600,000 years. There is a very regular pattern, from which we can easily identify the ice ages and subsequent warming of the earth. Then take a look at where that CO2 level is today. It's nearly double where it should be, and is expected to increase by another 200% during our lifetimes.
To me this isn't fear mongering, it's blatantly obvious scientific data.
Discuss.