There is no need for Atheists to disprove the existence of a God or Gods
Isn't that what I said?
science will do that for them eventually.
I don't think science can prove God doesn't exist, because of the very nature of what the believers say God is. It's one of the clever ways in which they hang on to their beliefs.
Science can prove that the believer's claims of how the world came to be and how we came to be here are wrong, which is the case already. That blows the credibility of their belief system out of the water.
It is unfortunate that there are gaps in evolutionary knowledge and records for them to latch onto. Mapping of genomes will close many of those gaps. Unfortunatley, the lack of organic evidence from millions of years ago makes mapping genomes of species long extinct impossible, but that's where cladistics comes in. Then there are concepts such as the molecular clock which is used to predict at which point two species diverged.
Gaps in the fossil record don't help. Yes new discoveries are made all the time, but the fossil record is never going to be complete because of the circumstances and conditions necessary for fossils to form. In many cases it has been pure luck that a particular species has found itself in the fossil record.