KCC's Quizzes AQQ245 on Fossil Dating with Carbon14

1) From 0.8 to 0.2 it is factor 4. That means C14 isotopes two times halved.
2 times 5536 years makes 11172 Years. This should last ice age, aka Last glacial period LGP  

2) Due to more pollution, we will have more CO2 in future. Which produces a lot C12.
The problem by fossil oil is the C14 isotopes in oil are already diminished due to millions of years radioactive decay.
Thus the ratio C14/C12 will be in future less, and similar levels to e.g. 1000 years old material from forensic or archeology.  
So we will have more uncertainty in the forensic identification.

Analogy to Electronics, our SNR (Signal to Noise Ratio) will be less. 

1) From 0.8 to 0.2 it is factor 4. That means C14 isotopes two times halved.
2 times 5536 years makes 11172 Years. This should last ice age, aka Last glacial period LGP  

2) Due to more pollution, we will have more CO2 in future. Which produces a lot C12.
The problem by fossil oil is the C14 isotopes in oil are already diminished due to millions of years radioactive decay.
Thus the ratio C14/C12 will be in future less, and similar levels to e.g. 1000 years old material from forensic or archeology.  
So we will have more uncertainty in the forensic identification.

Analogy to Electronics, our SNR (Signal to Noise Ratio) will be less. 

Thanks a lot Hakan for your answer and comment!

Answer to question 1 is right!

On question 2, I agree there can be many assumptions with unknowns like how fast and where (? only in the upper atmosphere level)  the C12 atoms are transformed in C14? By assuming the C12 generated by the human actvities, thus only in the very last 50 years and by assuming those additional C12 have not the time to reach the upper atmosphere layer, we can then extrapolate the C14/C12 ratio appears much less than it should be; thus giving a longer age to our bone...