Oceans Frozen 900 Ft. Global Warming You Say?

Over the last several years, biologists have been trying to figure out the chemical compositions of the primeval Earth (ancient Earth), as well as, when organic matter began to take control and produce life. When the Earth was first created, it was a giant hot ball of molten elements, that had a reducing atmosphere (meaning the atmosphere was composed of gases such as NH3-ammonia, CH4-methane, H2-elemental hydrogen, CO2-carbon dioxide, among others). In this case, life would have been very hard to get started, until better conditions arose. The important thing to realize was that it did, and the earth eventually cooled down -- maybe froze would be a better word. When looking at the carbon distribution in the Earth, biologists originally thought that it was mostly in the atmosphere as carbon dioxide (CO2), which would create the so called 'Greenhouse Effects' that are supposed to be causing global warming , today. When CO2 is in the atmosphere, it works as kind of a blanket to keep heat in. So, in the case of the Earth, the earth would have not cooled down as fast....OR DID IT? New theories are coming out saying that most of the carbon at this time was in fact not in the atmosphere as CO2, but in the ground as calcium carbonate (CaCO3). Due to the sun being about 70% as powerful as it is today, the earth with no greenhouse effects, would be super COLD! So cold that the whole world would have oceans that were frozen 900 + ft down! Sounds like it would be a challenge to ice fish, but at least it would have been safe to skate!