age 20 taught evolution as 100% fact in a Catholic high school.. and throughout college...
don't know how old the earth is... the methods behind carbon dating and other methods is sound the logic is not.
i don'[t have a reference for you but when you learn how to carbon date etc.. the first thing you learn is selecting the right method. This is simple. Look at the rock. if it's in precambrian is billion of years old so use one that suits. top layer use carbon dating.. so on. n In order to date a rock you need to know the age prior to testing because if you use carbon dating on a rock more then 50 000 you get wrong answer. Use Uranium on one thats younger then you get a wrong answer.