Shermana wrote:Calling my sources "crap" I believe is against the rules.
If being able to ignore someone's sources without effectively disproving them and call them "crap" counts as debate, I'd like to see the part on the rules that states this.
First of all, you have not backed up
any of your claims with sources " this
is specifically against the rules. I suspect that you are getting your information from sites such as
www.answersingenesis.org; however, since you are not sourcing your information, this is just a guess. I am free to think that creation blogs are crap just as you are free to think that scientific journals are crap.
I am only ignoring your sources because you have failed to provide any relevant sources. Of the only two links that you have provided so far, one was of a scuba diver who finds UV light 200m underwater. I tried explaining to you that this UV light would be mostly UV-A and completely harmless. The other link that you provided specifically states that Marine organisms have evolved ways to protect themselves from UV, including UV-absorbing pigments, the ability to repair DNA damaged by UV, and developing behavior to avoid UV by staying in deeper water. Your links simply do not support your argument that cyanobacteria could not have evolved ways to survive prior to there being an ozone layer.
Again, please source your claim that cyanobacteria could not have survived without the ozone layer. Any source will do Ill even accept
www.answersingenesis.org because I would love to read from where you are pulling these arguments.
Shermana wrote:Also, if you believe that Cyanobacteria did NOT form the Ozone layer, you are up against all other sources.
Im not sure why you think that this is my argument. Allow me to clarify: cyanobacteria were largely responsible for the appearance of large amounts of oxygen in the atmosphere.
[2] These cyanobacteria lived in colonies known as stromatolites. The biomineralization of the stromatolite colonies would have protected the cyanobacteria from UV-B and UV-C radiation.
And now I'm really confused as to what you are arguing. If your sources provide evidence that cyanobacteria produced the oxygen that formed the ozone layer, then I agree completely with your sources.
Shermana wrote:Asking me how I explain Stromatolites doesn't explain how they came to be in the first place.
Ummm, Evolution explains how stromatolites came to be. I was asking for you to explain your claim that they could not have survived in the absence of an ozone layer. Stromatolites survived for more than 500 million years without there being oxygen in the atmosphere (or an ozone layer).
Shermana wrote:Your argument is: Since they are there, they MUST have endured 1000% UV
No it isnt. My argument is:
(A) Billions of years ago, less UV radiation reached the surface of the earth (the sun was dimmer, and there was more volcanic activity.)
(B) Harmful UV exposure decreases rapidly at increasing depths in the water column.
(C) Marine organisms evolved ways to protect themselves from UV, including UV-absorbing pigments, the ability to repair DNA damaged by UV, and developing behavior to avoid UV by staying in deeper water.
(D) Cyanobacteria lived in colonies known as stromatolites. These colonies have a biofilm that allows visible light to pass through, but protects the organisms from harmful UV radiation.
Shermana wrote:You see, you need to PROVE that it existed before the Ozone layer and endured 1000% UV before you call it evidence.
And theres that prove word again. You do realize that the word proof isnt used in science, right?
Cyanobacteria fossils date to at least 2.8 Ga, and possibly 3.5 Ga. Oxygen levels in the atmosphere did not begin to increase until about 2.3 Ga. You can look these dates up yourself in any encyclopedia or scientific literature if you wish; however, I provided a source for you in an earlier post.