Actually, with all the hybrids, the THC levels are much higher overall than pot of the 70's. I remember a lot of bunk from Mexico.Horseshit.
2014: "The pot of today is way stronger than ever".
2005: "The pot of today is way stronger than ever".
2000: "The pot of today is way stronger than ever".
1990: "The pot of today is way stronger than ever".
1980: "The pot of today is way stronger than ever".
1970: "The pot of today is way stronger than ever".
Yammer yammer, heard it all before, bullshit then, bullshit now, bullshit tomorrow. The song remains the same.
As noted before, I literally cannot remember a time in my entire life when this claim hasn't been trotted out ad infinitum. Nor can I remember any documentation ever substantiating it. At all.
I'm using a tablet and can't link but a site called medical marijuana procon.org stated the THC level in the 70's was around 3.5%. Today it's over 7%. Just Google it.
Also, PCP was smoked quite often back in the 70's. True story