Where is the flaw? I never said "ignore everything" either.
This isn't a game or a football season. You ask for more than predictions? You want some kind of physical result? And this you need before taking "the chance"?
You on the other hand have a flaw in your reasoning:
You say that if I am wrong our speicies is dead. I have said nothing except that we should do what we can to minimize our impact on the environment. If I am wrong the right way is the opposite, right? Keep the level of pollution constant. Which means that you believe that if we let nature have it's course without interferrance - it will kill us?
Have I understood you correct?
Sticking ones head in the sand is ignoring everything, so yes you did.
If we waste our resources and force people to use products and services at prices which are much higher than they should be just because of false predictions, yes it will destroy our species no matter how you spin it. If the global environment wants to change, it will, we cannot stop that. Our influence in the world is not something new, nor is it something alien like so many think, we are "part" of the planet. Therefore our influence is completely natural, all of it, just as the influence of the dinosaurs. What we do cause to change is something the planet is prepared for, it has been preparing for millions of years for it. We cannot destroy it, we cannot end all life, that's impossible, even a nuclear blast couldn't do that. We know this from science, and most sciences deny that we can change the changes, all we can do is adapt to survive what changes occur. Right now, we need resources to adapt to any possible changes, resources which are being wasted on environmentalist corporations who are getting rich off the fearmongering.