The author of this website is in absolutely no way responsible for any damage to the planet earth, its atmosphere or any live-form living on it, which may be caused by the CO₂ produced with this website. It lies in the user's responsability to click, or not click a button. Needless to say that this particular button we are talking about isn't even meant to be clicked. It is just a button which got bored and decided to appear on this website - and as the author is friendly human being, he let the button do so. It is basically Google who produces the CO₂ (so much to the slogan "do no evil"...). Regarding the quite unlikely case that a user clicks the button, he engages to push his car the next 100m instead of driving it to compensate the CO₂ production.
The whole website, including these lines, was created by converting a specific sequence of cohesive decimal places of Pi to binary and encoding that - what led to what is showing up at your screen right now. Therefore, if this website was guilty of anything, Pi would be guilty too. And this would definitely make every mathematicians sad, no one wants that.