Global warming: natural variability vs anthropogenic influence?

[izentrop]

8.500 years ago, during the "Holocene climatic optimum", arctic temperatures were 2 to 4 degrees higher than they are today, and despite that, no point of no return has not been reached.
So: not enough to make a cheese out of it.

Yes, thanks to the earth's favorable position relative to the sun.
At the equator they were lower
https://science.sciencemag.org/content/ ... gures-only

Modern society has fully developed in our current geological era, the Holocene. Global temperatures have not changed more than ± 1 ° C since. There have been regional changes in climate (medieval warm period, small ice age, etc.), but since the beginning of civilization, humans have never known a warmer global climate than now. https://www.skepticalscience.com/humans ... hanges.htm

Today, the rise in temperature is the greenhouse effect that causes it ...

[izentrop]

Permafrost melting and Zimov's hyphotesis https://www.arte.tv/fr/videos/091130-00 ... -de-zimov/

The teaser

[izentrop]

Another chilling video on the same subject

[OlivierD]

I admit that I haven't read all the posts, but basically there are people who say that more or less variations, there have always been, it's true but on 20000 timescales years and not 200, which left time for the flora and fauna to migrate or adapt,
We can also say that a few degrees is not much, but we are already at + 1,1 °, and 20000 years ago when we were at 5 ° less, there were three kilometers of ice on the ground. 'Europe, and the sea was 120 meters lower ...
and reminder, the collapse is not an event but a process, which began around 1971.

listen to the conferences of arthur Keller and others ... the link is in my signature .. Shall we talk about it later? or do we remain in denial?

Olivier

I also liked the series' the "collapse", especially the end of episode 7 ...