Episode 137 - Why Earth Is Old, Without Radiometric Dating

Most often when discussing the age of the Earth or the solar system, scientists refer to radiometric dating. In kind, young-Earth creationists will try almost exclusively to poke holes in radiometric dating. But, before radioactive decay was discovered over one century ago, scientists in many different fields had already concluded that Earth was at least millions, if not hundreds of millions of years old. This episode discusses the reasoning they used.