Satellite data shows up climate forecasts

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It was warmer than now during the Holocene Climatic Optimum around 10,000 years ago. It enabled mankind to abandon a wandering subsistence lifestyle and settle down and start farming. It led to the establishment of civilizations.

Once mankind started turning to farming, they accidentally created the conditions that led to the development of hexaploid wheat via what is sometimes termed horizontal (or lateral) gene transfer in which the chromosomes from a related grass was transferred to a tetraploid wheat and resulted in a hexaploid wheat. That is the wheat that grew well in a much wider variety of climate conditions and enabled mankind to spread out around the world with much greater ease.

Whether or not you know it, most of what we have today was brought to us as a result of global warming.

It's not even close.

During the earliest stages of a period known as the Younger Dryas, is thought that global temperatures fell by about 10 degrees Fahrenheit in about 10 to 15 years and after more than a thousand years of such bitterly cold temperatures, it ended with a rise of 15 degrees Fahrenheit about as fast.

Younger Dryas warming was not global. It was tens of thousands of years ago and does not appear to have big impact on carbon dioxide.

Some global warming impacts are worse than in 100,000 years. Some global warming affects are worse than in millions of years and affect carbon dioxide levels.

Of course it wasn't exactly the same in every continent. Some places felt it worse than others.

As for the rest, it reads like a lot of paranoia.

Temperatures were higher just a few thousand years ago. Sea levels were higher as well -- several feet higher, I think. 120,000 or so years ago was the Eemian, the previous warm period to this one and it was warmer than this one. Yet, when it ended, we entered another 100,000+ year period of major glaciation.

You do realize, don't you, that during this 100,000+ year period, the sea level was about 100 meters lower than now, don't you? So the salinity was the same? Not likely.

Yes, things have always been changing.

But human civilization might have a lot of trouble with this kind of change.