Thirty Years On, How Well Do Global Warming Predictions Stand Up?

[donquixote99]

1. There is an anti-birth crowd?

2. "Thirty years ago, a NASA scientist, James Hansen, told lawmakers at a Senate hearing that “global warming is now large enough that we can ascribe with a high degree of confidence a cause-and-effect relationship with the greenhouse effect.” He added that there “is only 1 percent chance of accidental warming of this magnitude.”

This is the first sentence of this review of 30 YEARS of getting nowhere on climate change. The statistical certainty of greenhouse climate change has now risen to the 'five sigma' level, that is, from 1/100 chance of error to 1/1,000,000. That is what the '12-year shouters' are shouting about.