3 ms·
I agree with everything you say here but feel the ">20 years" hides something. We can easily say 30 years, there are very good arguments to say ~50 years and t
by tephra 5y ago
I agree with everything you say here but feel the ">20 years" hides something.
We can easily say 30 years, there are very good arguments to say ~50 years and to get truly technical we could say 70-100 years.
- disgruntledphd2 5y agoI remember worrying about this as a child, and I'm in my forties now. It's been a long, slow process.
- fifafu 5y agoYes, I didn't want to spread false information because I'm no expert either. ~20 years is the time span I consciously remember reading & hearing about it but I'm sure scientists have warned us for much longer.