Global Trash-In-Trash-Outing

Via What's up with that?, de uma publicação da NASA (PDF):

Global records of surface temperature over the last 100 years show a rise in global temperatures (about 0.5° C overall), but the rise is marked by periods when the temperature has dropped as well.

If the models cannot explain these marked variations from the trend, then we cannot be completely certain that we can believe in their predictions of changes to come.

Bottomline, os modelos actuais não têm poder explicativo para o passado, condição necessária para poderem prever o futuro.