[kerneloftruth]

It was actually 12 years:

https://news.yahoo.com/ocasio-cortez-world-going-end-1505170...

The point is, beware making quantified predictions. Climate change is real, but when one makes hyperbolic predictions with a quantified timeframe, and then it doesn't happen, the argument is weakened, and skeptics are reinforced.

Al Gore learned the same lesson.