What is you graph telling? It hasn't a proper description of the axes...
So you try to tell me that all of that descriped and explained in the following summarized article is nonsense?
That CO2 had already higher concentration in the past are, by the way, facts that the same researches found out, who are researching about climate change and the human impact.
How dramatic that impact will be nobody knows 100% for sure. But surely it isn't for the better! you can see already what is happening on a global scale, just by the small changes which are happening now.
And by the way! Life on earth had several periods where it had mass extinctions because of changes on earth like the atmosphere.
As vulnerable and at the same time arrogant and overconfident human society is, I doubt we put ourself in a good position in this poker game about life.
