John_Taverner wrote on Oct 14
th, 2021 at 8:19am:
Let's just simplify. The fallacy of oversimplification occurs when we attempt to make something appear simpler by ignoring certain relevant complexities. .
You mean like batteries? Or like Australia and the Southern H?emisphere being a giant CO2 sink?
John_Taverner wrote on Oct 14
th, 2021 at 8:19am:
Quote:
There is already evidence from satellite imagery that the tundra beyond is becoming greener and shrubbier. Many scientists expect the tree line to advance eventually, and some studies purport to show that this is already happening. Some models predict that half the current tundra could be converted by 2100, though others say the process would be much slower. On the other hand, some studies assert the trees are actually retreating in areas, as heat dries forests, helping invasive insects and fires to destroy growing areas.
Oh a greening world due to CO2. More cropland available. What is not to like?
"Some models predict"? You mean those models that have shown no predictive value?
John_Taverner wrote on Oct 14
th, 2021 at 8:19am:
Let's just ignore what researchers are saying and come to our own cut and pasted opinions.
And of course those pesky tree stumps that are still above the snowline.
“All recovered tree specimens originate from exceptionally high elevations, about 600-700 m atop of modern treeline positions."
“Conservatively drawing on the latter figure and a summer temperature lapse rate of 0.6 °C per 100 m elevation (Laaksonen 1976), could a priori mean that summer temperatures were at least 4.2 °C warmer than present around 9,500 years before present. However, glacio-isostatic land uplift by at least 100 m since that time (Möller 1987; Påsse & Anderson 2005) implies that this figure has to be reduced to 3.6 °C higher than present-day levels, i.e. first decades of the 21st century. Evidently, this was the warmth peak of the Holocene, hitherto.”
https://www.researchgate.net/publication/324991910_Further_Details_on_Holocene_T...You mean researchers like this? Or only those with which you agree?
So let's see you don't like the CSIRO because they say the entire SH is a CO2 sink?