Our study suggests that climates like those of the Pliocene will prevail as soon as 2030 CE and persist under climate stabilization scenarios. Unmitigated scenarios of greenhouse gas emissions produce climates like those of the Eocene, which suggests that we are effectively rewinding the climate clock by approximately 50 My, reversing a multimillion year cooling trend in less than two centuries.
https://www.pnas.org/content/115/52/13288
So what? I haven’t read the full paper because it is behind a paywall, but the Abstract makes no mention of any evidence that the world would be worse off with Eocene or Pliocene temperatures than present temperatures. They are simply presuming and implying that warmer is worse and we should be scared of it.
The evidence from those periods is that flora and fauna thrived much better during those warmer times than it does in the present Icehouse conditions. And life thrives during rapid warmings from icehouse conditions. But life struggles during cooler and cooling periods.
The scare that “effectively rewinding the climate clock by approximately 50 My, reversing a multimillion year cooling trend in less than two centuries” is about as silly and baseless as the masses of other scare stories we’ve been told over the past few decades. It’s like James Hansen’s scare that the oceans will boil off and Earth will have an atmosphere like Venus.
It’s taken 50 Ma for the temperature of the deep oceans to cool by 15C. They’ll continue to cool for as long as there is ice at the poles and the melt water from the ice sinks into the deep oceans. There is no chance of melting all ice on Antarctica in two centuries. And, while the deep oceans are this cold, the atmosphere cannot warm dangerously.
This is clearly just more climate alarmist nonsense. This time by NPAS.
