Even though there are many hypothesises about the why the Earth's oceans did not melt in the prehistoric times. I think Dr. Rosing's hypothesis is true. Rosing's hypothesis says that the Earth's oceans did not freeze due to thin clouds. This is thought to be true because at that time, clouds lacked condensation nuclei. As might be expected, this made the clouds more transparent to the sun. Thus, allowing more sunlight, keeping the Earth warm. Another factor, is that there was less continental area at that time. This meant less sunlight was absorbed.
Hence, Rosing's hypothesis is true due to huge factors. One factor is the thin clouds at that time. Another factor, is the less continental area in the prehistoric times.
