Comment Re:More proof (Score 1) 667
We have determined that to a very high level of consensus in the scientific community.
In other words, there's less validation on a potentially world-changing theory than on the validity of a single bitcoin.
Absolute certainty is only available in the realm of pure maths and logic. Well-programmed computers come quite close to that, but most systems cannot be perfectly understood even in principle - see The Matrix and Descarte's evil demon. The level of certainty of AGW is much better than the level of certainty we accept to send people to prison (which is supposed to be "beyond reasonable doubt").